I was putting a new computer together and got a ECS 945GZT-M mother board, a socket 775 P4 3 GHz, 1 gig of RAM. I also purchased a sony DVD-RW and a Seagate 7200.10 80 GB HD. I installed everything, and all powered up. I checked the BIOS to make sure all the drives were listed and in the correct boot order. They were althogh they were listed as the third IDE devices. I went ahead and put in a WIN XP cd and botted the machine. I installed windows on the HD and at the point wher eit tells you it will restart, I ejected the disk and let it restart. The computer refuses to boot from the HD. I keep getting the error "Reboot and select proper boot device or insert boot media in selected boot device and press a key". If I put any bootable disk in the DVD drive it boots every time, but not from a HD. I tried three different OS install disks, 2 WIN XP and one win2k on two different Hard drives all with the same results. Anyone have a clue?