just installed this this morning on my works PC (yes i do work, sometimes!) and even since then i've had a problem
it happens when i'm replying to a thread - not creating new posts.
i click 'quote' and the text is displayed as usual in the reply box - the problem happens if that quote pretty much fills the text box and i start typing underneath. As soon as i start typing my reply the screen starts jumping up and down literally after every key press making it difficult to see what i've typed
anyone else get this problem?? is it a silly setting in IE8??
Hope i've explained it ok - bit trickey to visualise unless you're sat in front of the screen

Ta
Rhys