I purchased a Compaq Presario 6 months ago. For the past 2 months, the computer shuts down at random times. When it restarts, I get the recovery screen asking how I'd like to boot-up (safe mode, normal, last good configuration), where I select the last good configuration option. From this point, whether or not the computer starts up is anyone's guess...it moves onto the XP loading screen, but after a little "thinking", will sometimes restart and take me back to the recovery screen to start the process again. It usually takes atleast 2 passes of this to actually get up and running. Once it does, the computer seems to function fine until the next time it decides to shut down (usually every couple days, give or take). I've got norton and it never finds anything. Anyone know what the heck is going on and how to fix this?