During launch of Openoffice a square banner window appears in the middle of 
the screen, which can neither be moved, iconified or otherwise clicked away. 
Moreover, it is sticky and thus "follows" even when switching to a different 
desktop pane. The banner window stays during the complete (lengthy) startup 
process, and makes it difficult to temporarily switch to something else while 
waiting for OpenOffice to start up.
I am aware that many commercial software use similar banner windows having the 
same problem. Here is an opportunity to make your product better than those 
others ;-) If marketing insist on keeping that banner, please at least add a 
way to make it disappear (such as: user clicks on it => goes away), or have it 
obey the normal window manager actions (user can move it to a more convenient 
spot using alt+left_mouse button...)