I recently updated xp pro with the so called critical updates from microsoft - big mistake. when i got home from xmas trip last night, i noticed my machine was rendered useless. i was running xp pro and had zero problems before this patch. now it does not reboot correctly. in fact, when i reboot, it gets to the screen where i can choose to enter safe mode or use a previous config to boot. choosing either option is useless. it does not reboot. i've even encounted a blue screen...zoiks! should i use the repair tool? should i format...no not an option yet. what exactly caused this problem? obviously the patch..but what specifically is the problem here? anyone have similiar problems? happy new year..thanks microsoft for lost productivity.