If you have a very large submenu that takes up more vertical screen space than the window it is impossible to access the submenu options, because when you hover over the submenu the screen moves and the submenu disappears quickly.
Test page attached.
If I create an iframe and try to get the position of one of it's content elements using YAHOO.util.Dom.getRegion the results are offset by the window scroll position in IE.
For example in this test page:
Iframe test
Logged In: YES
user_id=1421010
K3b SVN trunk is not supported, should work if you use
either a 0.12.x source tarball or the SVN "stable" branch
from /branches/stable/extragear/multimedia/k3b/.