I've just finished putting my sisters PC together & installed XP, no problem. I registered an internet account for her (Tiscali no monthly fee 56K). The PC has no problems connecting to the net but after about 3-5 mins an error message appears saying it is going to shut down the PC. The message contained something like this: The shutdown was initiated by NT Authority/system. Then it goes on about a Remote procedure call (RPC). I've had enough of computers, I'm going to take up fell walking. Cheers. Steve.