Ok so first of all I apologize if my specific problem has been addressed before or if this is somehow in the wrong place. First off, the computer with the problem is apporoximately 2 1/2 years old and is a Compaq Presario with Seagate 80 gig HD and a Intel P4 2.20ghz. Everything is completely "stock" other than a tdk cd burner which was added about 3 days after the computer was purchased The whole story is that about 4 days ago my son was playing an online game on the computer and the system robooted itself (which it had been doing more often than normal) and then simply went black. When I tried to restart it refuses to boot and and gives me a "Disk Boot Error, Insert System Disk and Press Enter". The only thing that will come up is the Compaq screen and then the bios startup screen. Well for some stupid reason we can't seem to find our Windows XP home disk anywhere, and because we needed a computer immeadiately we ran to wal-mart and bought another compaq tower. This one is an AMD Sempron 3200 1.79Ghz with 224MB Ram. I figured that since I couldn't find my XP cd that I could just use the cd's that came with the computer. Well none came with the computer but I burned them per the instructions and then I tried to boot from the cd. I went into bios and made sure that the cd was before the HD in boot priority and the gave it a shot. Now it's saying "Invalid System Disk" and says something like replace the the disk and press any key. Which of course does nothing. So since none of that worked I set the old HD up on the new computer as a slave. I made sure through the manufactures website that the jumpers were set up correctly.(I had it wrong at first) Well I finaly got the new computer to boot with the old HD set up as the slave, though it probably took about 15 minutes and it tried to hang up 3 or 4 times. Well I went into the device manager and it says that both drives are working normaly though it shows no partitions or any information whatsoever on the old drive (I'm assuming this is bad). When I go into my computer it doesn't show the old drive at all... I'm really completely at loss. I've done 4 days of reading boards and searching the internet trying to find different answers and solutions and thus far nothing has gotten me any closer to an answer *though I have learned a lot about HD's in the process* All that I'm really concerned about is saving several thousand pics that I'd never gotten around to burning and some 2000+ scrollsaw patterns which were the basis of my ecommerce store. If anybody has any suggestions then I'm all ears. I hope someone out there can help me out.