Dialog does not scroll and in general behave properly in IE7 (we do not support IE6 anymore)

Dialog does not scroll and in general behave properly in IE7 (we do not support IE6 anymore)


Dropping IE6 I thought whoa - at last or something like that and now
here is IE7.
I'm not sure what the problem is, so I'll just describe it. We got a
dialog box with some uploading stuff happening in it - progressbars,
list of files being uploaded etc. Once file is uploaded, corresponding
item becomes expandable (it show some file properties, actions that
might be applied to it and so on). Now the problem - once we expand
two or three entries, content becomes bigger then the dialog and
logically forces scrollbars to appear. In all major browsers like FF,
Opera, Safari, everything acts and scrolls smoothly. It's only IE that
causes the problems. Content doesn't scroll at all. Scrollbars moves,
but content doesn't and then suddenly it does, but appears on top of
the titlebar. Very wierd. One specific that may be causing this is
that we use animate to expand items smoothly. Although I do not know
why it should affect anything at all anywhere :(
Any idea? Has anyone encountered anything like this? Any solutions?