The whole screen, everything except the blue title bar and the minimize/close buttons. CPU useage also goes to 100% and says there until the process is stopped. I'm running windowsXP Service Pack 2 with all updates. AMD FX-51 2.2Ghz CPU, Asus SK8V motherboard, 2GB of Corsair XMS series PC3200 ram. Install hard drive is a Seagate Barracuda 7200RPM IDE 120GB drive. I uninstalled and reinstalled the latest java virtual machine from sun microsystems, same thing.