The ability to auto-hide thumbnails was introduced in Juicebox-Pro v1.5.0 (please see the Version History for a list of changes between versions) but your gallery currently uses Juicebox-Pro v1.4.4.1.

Your Showkase-Pro v1.6.1 installation already comes bundled with Juicebox-Pro v1.5.0 so all you need to do to upgrade your gallery is re-publish your site (just click the 'Publish' button).
You may have to clear your browser's cache afterwards before reloading your gallery's web page.

This should solve your problem.

The "email us" link in the Support Overview is a 'mailto' link.
A 'mailto' link will open your computer's default email program and start an email to the specified email address.
If you do not use an email program (such as Outlook or Thunderbird) on your computer and, instead, use webmail (via a browser interface), then nothing will happen when you click on a 'mailto' link.

The email address for email support is showkase@simpleviewer.net. It can be seen in the browser's status bar when you hover over the "email us" link. You can also right-click the link and select 'Copy Email Address' which you can then paste into a new email to send to us. Alternatively, you can post any queries you have here and I'll do my best to help you out.

I expect the grey color you are seeing is coming from line 386 of the '_themes/maribo/css/styles.css' file (the 'background-color' entry in the following section).

.gallery-listviewer .image-wrap {
  /* intrinsic ratios image sizing */
  position: relative;
  height: 0;
  background-color: rgba(0, 0, 0, 0.1);
  margin-bottom: 2em;
}

I'm not sure about the origin of this 'background-color' entry (a neutral grey might have been chosen to prevent an even more distracting flash of either black or white in certain browsers) but try removing the 'background-color' entry, changing the color to match the background color of your website or change the 'rgba' value to be completely transparent: background-color: rgba(0, 0, 0, 0);
This should hopefully solve your problem.

Please note that the line number above refers to the current version of Showkase (v1.6.1).

(1) You can change the configuration of the CKEditor toolbar in the 'showkase/admin/settings/ckeditorconfig.js' file.
If you'd like to use the 'Full' toolbar, change line 32 from:

config.toolbar = 'Showkase';

... to:

config.toolbar = 'Full';

Otherwise, you can configure a custom toolbar by changing one of the templates in the file ('Showkase', 'Basic', 'Full') and making sure that line 32 selects the template you wish to use.
Showkase incorporates CKEditor v4.5.7 so please refer to the documentation here: http://docs.ckeditor.com/#!/guide/dev_toolbar
Also, please note that the line number above refers to the current version of  Showkase (v1.6.1).

(2) The Showkase Library was designed to accept images only (files with extensions jpg, jpeg, gif and png).
All Library and upload functionality is based around images. When selecting the 'Library -> Images' tab or clicking a 'Browse Library' button, only images are displayed. It would probably take quite a lot of modification to several source files to allow other files types to be accepted by the upload module and for functionality to not be broken anywhere in the interface. Care would need to be taken to filter out non images for Library selections (such as the theme 'Logo') as the file may end up as a 'src' attribute in an <img> tag.
If you need to incorporate a pdf file in your site, the best thing to do would be to upload it to your web server manually and add your HTML code as necessary in the editor (as you are currently doing).

I hope this helps to clarify things for you.

That's great! Thank you for letting me know.

If you want to remove the dotted line below links in the Maribo theme, add the following CSS to your 'showkase/_themes/maribo/css/custom.css' file:

a {
    border-bottom-style: none !important;
}

Just to clarify, in the current version of Showkase (v1.6.1), the folder name is taken from the page name on the 'Pages' tab (shown in the tree) rather than the 'Page title' in the page settings.

I have just double-checked this functionality in a Showkase-Pro v1.6.1 site of my own and everything seems to work as expected. I am unable to replicate the problem you reported.

I do not know why your folder names are not changing to reflect your page names but here are a few things to check and try.

(1) You say the problem seems to have started recently. If you have not made any changes yourself (other than to your Showkase pages), then perhaps your web host has changed something on your server or web hosting account that is somehow contributing to your problem.
Please try installing and running the Showkase Server Compatibility Test to check that your server has all the features Showkase needs. If any of the tests fail, there are troubleshooting tips on the test's support page (link above).
Even if you ran the test before installing Showkase, please try again in case your web host has made any changes recently.

(2) Try going to 'System -> Repairs' and clicking the 'Repair' button to rebuild the page records. This might help.

(3) The problem could possibly be related to permissions. Try going to 'System -> Files' and click the 'make writeable' next to the folders in question.

(4) I notice that the pages you referred to in your post above are not represented in the navigation menu. Are they hidden or is this part of the problem? Try moving the pages in the tree on the 'Pages' tab to a different location (just temporarily), click 'Save' and 'Publish' and then move them back to where you want them to be (and, again, click 'Save' and 'Publish').

(5) After changing a page name (on the 'Pages' tab) is there a new folder with the new name as well as the old folder?

(6) Does the functionality of Showkase still seem to work OK (even though the folder name is not changing on your server)? If you make any changes to one of the Showkase pages whose folder names do not change, are the changes applied successfully?

Maybe the suggestions in #1, #2, #3 and #4 above will help.
Otherwise, the additional information from #5 and #6 might at least point us in the right direction.

It looks like your "October 8" gallery is a standalone Juicebox gallery (and not yet a Showkase page).

Have you imported the gallery into your Showkase site yet? If not:
(1) Go to 'Site -> Import'
(2) Enter '/' as your import path (to denote your root directory where your gallery folder, "october_8", is)
(3) Click 'Scan'
(4) Select the gallery
(5) Click 'Import'

Once the gallery has been imported into your Showkase site, you can drag and drop the gallery page onto your gallery index page on the 'Pages' tab (to have the gallery listed on the index page).

Yes. Edit your gallery page, go to the 'Images' tab and select the image you want to use for the thumbnail on the gallery index page in the 'Index' column.

Yes. Go to 'Site -> Site Settings' and enter the URL you'd like to use for your site header in the 'Site -> Site header link' input field.

The sharing icons that Showkase uses are characters in a custom font (created by the IcoMoon app).
If the IcoMoon library had an ArtStation logo, you could maybe have added it to the font that Showkase uses, and change the logo for a sharing option that you do not currently use.
However, there does not appear to be an ArtStation logo within the IcoMoon library so you might have to just manually add an image link to your page's footer.
You can add custom HTML code to your footer by opening your 'showkase/_themes/base/pagetypes/basetheme.tpl' file in a plain text editor and modifying the {block "footer"} ... {/block} section at the end of the file.

Thank you for running the Server Compatibility Test.

The fact that your server has PHP v4.4.9 is almost certainly the cause of the problem. Showkase requires PHP v5.2.0 as a minimum (please see the System Requirements).
It is highly unlikely that you would have been able to setup or run Showkase at all on PHP v4.4.9 so I suspect that the PHP version that is running on your server has recently been downgraded.
You might be able to change the PHP version yourself in your web hosting account's online Control Panel.
Otherwise, please contact your web host and ask them if they can switch you over to PHP v5.2.0 (or later).
PHP v5.2.0 was released on 2 November 2006 so Showkase does not require a super-recent version of PHP but it does require v5.2.0 or later for certain functionality that was released in this version.

You're welcome!

First of all, I should mention that you can quickly and easily change a gallery type (for example from SimpleViewer to Juicebox) within the Showkase interface. Edit the gallery page, go to the 'Advanced' tab and choose the gallery type your like to change the gallery to.
Just be aware that not all SimpleViewer configuration options have direct Juicebox equivalents (like the Watermark Options).

With regard to exporting a gallery from Showkase for use in JuiceboxBuilder-Pro, each page in a Showkase site is given its own folder in the root Showkase directory (named after its page name on the 'Pages' tab).
You should be able to download a gallery page folder from the Showkase root drectory to your computer (via FTP) and open the folder as a gallery in JuiceboxBuilder-Pro (via the 'Open Gallery' button on the 'Start' tab), where you can add a watermark (on the 'Images' tab) before uploading the folder to your server and importing it back into Showkase.

It certainly sounds like you might be referring to the Showkase 'Page Content -> Page title'.
If the title you are referring to is the text that you have entered into the 'Page Content -> Page title' input, then please try the second suggestion from my post above. (It is the only way to have the body content above the gallery in Kosel.)

Now that you've posted a couple of posts, you should hopefully be able to post links. (Otherwise, you can disguise the links by inserting spaces between slashes or leaving out the http:// part.)

Unfortunately, the forum is not set up to accept images but you can use an image or file sharing service to host the image and then post a link to it (disguising the link if necessary).