Yea, they are identical...
When you login, are the drop down menus for all the pages populated? If they are not then it might be tripping up on the file parsing for the *.h files.
Are you using the most recent version of Flash?
The only other thing I can think of is that Flash is throwing an error silently... If you download and install the debug version of flash player then you will get error popups when flash has a problem. The only issue with the debug version is that -many- websites, even well known ones have all sorts of runtime errors that you will have to click past/ignore.
Here is a link to the IE debug player
Here is a link to the Firefox/Opera/Chrome debug player
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