How to disable all thumbnails in all album lists?
Hmm... I think the easiest way to do this is in your theme. There's no way to do it with a configuration setting. Since this has to do with display, it makes sense that you customize your theme to do so. If you let users change the theme, you might not want to modify all the possible themes, so in that case writing a plugin or hacking a script might be your preferred solution.
For the theme customization, look for the variable $template_album_list and look for the part that mentions {ALB_LINK_PIC} - this tag is replaced by the album thumbnail. You need to remove this table cell as desired to give you the look you want.
(Remember that all theme customizations are found in sample/theme.php and if your current theme doesn't have what you are looking for, copy the relevant code from sample/theme.php and customize as desired.)
Thanks alot I managed to dot it... http://digitaldesignhub.com/gallery/index.php