http://blogs.msdn.com/aaronsaikovski/archive/2009/07/01/webpart-development-ajax-tab-control-tab-contents-not-displaying.aspxI found something very interesting the other day when playing around with the AJAX tab control in a custom WebPart. I created a WebPart that displays some data using the AJAX tabcontrol and found some interesting gotchas when working with it. Firstlyen-USCommunityServer 2.1 SP1 (Build: 61025.2)