Hi jQuery team,
I posted this to the google group and immediately got an invitation here, so please excuse the cross post.
I think I've found a small bug when using jQuery 1.4 with jQuery UI 1.7.2 in the 'open' event of the dialog widget.
When I tried to hide an element in the dialog during the 'open' method, it doesn't work when using jQuery 1.4, but it does with jQuery 1.3.2.
Explanation and demo of the bug: http://bit.ly/5Hz2u3