vbox stuck at 800x600 after upgrade to Intrepid

[Chris Mohler]

Hi all,

Upgraded from Hardy to Intrepid without any real problems (kudos to
the devs!!!), but now my virtualbox XP guest is stuck at 800x600, and
when I change to full-screen, the XP guest is only using 75% of the
screen.   Anyone run across this yet, or have suggestions (other than
ditch XP)?  Maybe I'm just tired, but my google-fu is worthless...

Thanks,
Chris