Just installed UI and built a simple page for the Create New User demo. Works fine in IE 8 but the form window opens then closes almost instantly. I looked at Firebug and there is a long list of errors, the top one of which is "Warning: Unknown property 'zoom'.  Declaration dropped". This seems to be a common error.

 

Versions:

jquery-1.4.2.min.js

jquery-ui-1.8.2.custom.min.js

 

Thanks