Hello everybody, I have sort of a weird problem going on with a Dell Dimension 2400 Series desktop. I was helping my friend to try and fix his computer that had a number of problems. At first the keyboard and mouse did not work, but when I was able to get the keyboard working to log into windows, I got an error saying that windows was having trouble trying to validate and would automatically restart the computer. Another issue was that the CD-ROM devices on the computer (there are 2 of them) were not being recognized as being connected. There seemed like no solution to fixing this computer, but then I thought about it and decided to take out the hard drive from the Dell and to put it into another computer (a Gateway desktop) which was actually functional, while disconnecting the hard drive from the Gateway. I was able to successfully reformat and reinstall Windows XP Pro on the hard drive. After this was done, I reconnected the hard drive in the Dell. The computer gets past the Dell logo screen, but then goes to the infamous Blue Screen of Death, listing a problem perhaps associated to any new hardware devices or hard drives that may be in error and that they should be disconnected and to try again. Is there any solution to my problem? I was thinking that perhaps there may be an issue related to the BIOS since windows was installed with another computer although it was the same hard drive. Could someone please tell me what I should do? Your help is very much appreciated. Thank you!!