In the previous beta/build, Windows XP/OS X would change the resolution automatically when going full screen. In this new beta/build, I just get a low resolution in full screen mode. The "Change Mac OS X resolution in full screen" under Preferences -> Appearence is ticked. I've tried unticking, restartng Parallels, ticking it again to no avail. Likewise I've tried restarting the host. I'm running 10.4.8 on a Macbook 2.0Ghz Core 2 Duo. M.