Hi guys Not posted in an age, but I hope you will not hold it against me, and be able to help me out! I have just bought a Western Digital Caviar 500 gig hdd. Installed it in my system, partitioned in 2 50 gig, and 2 200 gig sections, NTFS. When I boot, I get this message: nVidia Boot Agent 201.0462 PXE-E61: Media test failure, check cable PXE-M0F: Exiting nVidia boot agent Disk Boot failure, insert system disk and press enter I have tried reinstalling, but no change. System boots fine if I leave the Windows disk in the drive, albeit very slowly..... I have checked for loose connections, reseated cards etc etc. System is: Athlon 64 San Diego Gigabyte GA-K8N Ultra SLI nVidia GeForce 7600 GS Audigy 2 Platinum a gig of RAM and the aforementioned WD HDD (IDE) System was working fine and dandy before the installation of the HDD. Any help would be much appreciated.