Hi guys, I've been trying to solve this for hours. I have tried looking through the FAQ, the web as well as this forum. I have created a thread here: forum.joomlaworks.net/simple-image-gallery-%28plugin%29/image-showing-but-not-thumbnail-appears-blank-just-a-blank-rectangle/ and have not got an answer for over a week. I just released that the thread was place in the free simple image gallery section. I'm not sure if it makes any difference but I'm using the pro version so I've decide to post the problem here as well in the hopes to find a solution.

I have tried setting the cache to 0.
Renaming the images with no underscore what so ever.
Different sizes.
Renaming the folder.
I have uninstalled and reinstalled.
I have checked the permissions for the cache and plugin folder. Both are set to 755.

My server is running on php 5.2.11.

Strangely, I see a blank thumbnail. However, it is clickable and my image displays correctly when I click the thumbnail.

I have used this plugin for another site of mine at its fine.

Please help. Thanks!

Could you provide a link to a gallery item on your site?

Thanks! I've sent you a PM.

In your template CSS you have a statement

ul li img {
background:none repeat scroll 0 0 transparent !important;
margin:0 5px 0 0 !important;
padding:0 !important;
}

This is what causes your problem. It overrides the plugins CSS because of the !important.

Thank you! I'll change it and see if your solution works?

How did you find it? I haven't figured out how to use firebug to do this.

Thanks, your solution worked. I've figured how you spotted the issue as well. Thanks once again!