I have a page with a RadSplitter that works perfectly in Internet Explorer. However in Firefox, the RadSplitter will not load. If I set the VisibleDuringInit="False" the page won't show the splitter. If I set this property to true, it shows the splitter but its not sized properly and appears as if it is not fully initializing. However If the page does a postback the control fully renders. Any ideas would be very helpful, thanks. I believe it has something to do with my upgrade to 2009 Q3, as it was working well in both browsers prior to my upgrade.
Thanks
Thanks