Ruuning the latest version of Parallels 3 and Windows XP. Everytime I switch from the OS Screen or Coherenece to Full Screen I get a 800 x 600 screen resolution on Windows XP. I get bars on either side of the screen and a very ugly screen. I can go into the Control Panel and change the resolution to an acceptable size, but is there something that I can do so that it does this for me automatically?