I did an updated on SIG to 3.0 and I am getting the 'alt' text on top of my thumbnails. Here is the gallery.

abbevillechristianacademy.com/fundraising/aca-benefit-golf-tournament/2012

Any ideas why this is happening?

I cannot see SIG in this link...

Actually, I clicked on that link and it did open the page.  It is in the 'Gallery' tab.  But now the text is gone.  However, now I see no navigation (Previous / Next) buttons yet the navigation does work. Strange.  So I used Firebug to check for the 'close' button. It couldn't find the image "url("/plugins/content/jw_sig/jw_sig/includes/js/jquery_fancybox/fancybox/")".  As there was no 'actual' imagefile indicated, just a folder.  I checked and there is a sprite image "fancybox_sprite.png" in that folder so I assumed it must be something to do with JS.  It was set on JS v1.8 so I changed it to v1.9. No luck. Changed to other lower versions. No luck.  Reinstalled SIG v.3.0.  No luck.  I clear the Joomla cache and browser's cache (Firefox, Chrome and IE 10) after each change.  No luck.

At this point, the only thing I can think of is some type of Javascript conflict.  So I change the option in the plug-in to not load Javascript.  Naturally, the image links opened in a new browser window with no popup.  I saw there was an update to the Gantry Framework and template so I installed that update.  No difference.

So I uninstalled SIG 3.0, installed SIG 2.2 and it worked fine.  I have uninstalled SIG 2.2 and reinstalled 3.0 so anyone can look to see if they can determine why this is happening.

This is not happening on other sites from what I can see so it has me totally confused.

Versions:
JoomlaWorks 'Simple Image Gallery' Plugin v3.0.0 for Joomla!
PHP Built On Linux mangusta.websitewelcome.com 3.2.45 #1 SMP Tue May 14 10:21:52 CDT 2013 x86_64
Database Version 5.5.23-55
Database Collation utf8_general_ci
PHP Version 5.3.27
Web Server Apache
WebServer to PHP Interface cgi-fcgi
Joomla! Version Joomla! 2.5.14 Stable [ Ember ] 01-August-2013 14:00 GMT
Joomla! Platform Version Joomla Platform 11.4.0 Stable [ Brian Kernighan ] 03-Jan-2012 00:00 GMT
User Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0

I need to see the problem online please.

www.acagenerals.org/fundraising/aca-benefit-golf-tournament/2012

This must be a conflict with another script in your site.
Check if it comes from Mediabox system plugin you use.

Don't know what the issue was but it's working now.

Technology is great.....when it works!  :D