Originally Posted by Chuck S
I would think if this was an issue with the code it should affect all sites especially when viewing them in IE8 where the issue is so prevalent.
well the vb4 menu is completely different from the vb3 menu..
definetly the error is coming from the fact that something is missing probably some child sybling...
were there any template changes in 3.8.5? (i'm thinking of headinclude or similar)
try to activate the vbulletin 3 default style, and check if the error persists...