My friend has a very nice Compaq desktop with a 60G hard drive. However, she couldn't get the bloody thing to start. It's obvious that it's a hard drive problem so I took the disk to my house and plugged her into one of the spare ports. Now MY computer wouldn't boot. I tried something else which wasn't too smart on my part, and I booted normally THEN plugged her in. It killed the comp. It won't even power up now. HELP!! please?