I had this problem too. I installed sp2 over my current setup of xp pro with sp1a installed. Then when i right click any file or shortcut explorer crashes and resets the taskbar... yadda yadda we all know the result. So i uninstalled sp2 and its working fine again. Im just wondering if when i format and setup all my appz again will i have this problem. Well i hope not. And yes i had dr divx already installed