Full-screen / hide task bar

[taskswap]

I\'ve tried everything I could think of, including this:
http://eongames.com/diary/2002-02-28.html

but I just can\'t get my application completely full-screen. The title bar DOES disappear, which I\'m happy about, and my QWidget size is reported as the full-screen size on the device (480x640). But the task bar stays visible, and everything I draw in that area is not shown. How do I either hide the task bar or  move my window on top of it?

Thanks,
Chad