I have a css positioning problem with IE8 (and presumably earlier versions?) when it's in compatibility mode.
I've checked, IE9 is ok, other browsers ok, it's only compat. mode that seems to be the problem: turn it off and the positioning is correct.
So, is there a way to identify if a user is in compat. mode?
If so, I'd probably put up an alert including how to change the mode... unless there's a way to override that mode?