i came home this morning to find my computer monitor had gone black but the mouse cursor still showed up. i could move the cursor around but couldn't do anything (ctrl+alt+del didn't even do anything). i had left my computer on (as i usually do) overnight. (btw i'm running win xp pro.) so, i rebooted. on reboot the bios screen came up as normal, and then the windows screen that shows xp booting (with that little animated progress bar thingy). but then it went to a screen that had a bunch of error messages that were something like "init..." (i didn't have time to write it down). i rebooted again and nada. so, i grabbed my ubuntu live cd to boot from that. when i tried to boot the live cd in "safe graphics mode", i got this error screen: and it just hung there and didn't reboot or anything. i then tried booting windows in safe mode, which gave me a bunch of error messages that said something like "multi(0)disk(0)rdisk(0)partition(1)..." again i didn't have time to write it all down because it rebooted on it's own, then after that reboot i got a bsod, it rebooted again on its own, and finally i just cut the power to the thing. for probably a month prior i've had problems where my computer won't simply shut down. if i tell it to shut down, it gets to the end of the process and then just reboots on its own. if i cut the power by switching off the power supply, and then turn it on, it takes a while to turn on. i'll press the power button, then after a few seconds it will kind of "rev up" (i can hear the fans starting and stopping, then starting and stopping again, and see the lights from the mobo/etc turning on and off), until it finally just boots up. my guess is the most recent problem is with the file system on my hard drive, but even if that were true shouldn't i still be able to boot from the ubuntu live cd? what is going on here? any help is very greatly appreciated!