Had to replace a hard drive on a P4 PC. The original HD had a Sata connection to the motherboard with an IDE connection for electricity. I bought a new IDE HD and installed it and installed Office, etc and everything was fine. Now I get the message Disk Boot Failure. When I put in the installation CD it boots fine. I went back into the BIOS and disabled the Sata on the motherboard thinking the PC might be looking for the sata connection. Still get the same message. WHat can I do?