I have been messing with 9.1 for the last few hours. The first restart after installation resulted in some screwy stuff. I got the Multiple Users log in panel like normal. The only problem was that there was nothing there to click on. No names, buttons, nothing. So, I sent COnflict Catcher on a witch hunt. After about 25 restarts, it found the Startup Doubler extension and Microsoft Framework extension at fault. I thought my problems were solved...not hardly. The next restart resulted in the desktop loading like usual. Only problem was I couldn't click anything. No menus, drives, nothing. So, after what I read here, I disabled the Microsoft Office Manager extension. Everything works perfectly now. I do have the latest version of Office Manager. I guess Microsoft needs to do some more testing...