@Jorn:
a friend of mine had the same trouble with his computer. either the power-supply isn't strong enough to feed your hardware (the voltage sinks and the cpu stops) or your cpu gets too hot and stops as a result of that.
those two both sound feasible given my situation. my computer has been moved so that our grandparents can have the spare room while they stay (they'll be here a few more weeks) and as of this move the power hasn't been sufficient for me to use more than a couple of USB devices (dodgy socket, i think).
also, my fan has been getting really loud lately. i thought of cleaning it, opened my computer, and saw that i had no idea how. but there isn't any correlation between the fan going crazy and the computer freezing, so maybe power is more of an issue.
@Quad: i have all the latest XP updates except a Microsoft Office Update seems to fail every time i try, but since i'm on holidays i don't need to use Office at all lately. my internal drive is old, small, and very nearly full, so i have to rely on the external hard-drive.
@Michael: where do i find SATA drivers? should i be looking for them based on my motherboard?
thanks so far guys. i've had no issues so far today, and i'll see what i can do to minimize power consumption from this particular socket. if it gets too bad i might reconfigure to just use one screen (using two atm) to reduce power consumption.
julz