plz help flashing hitachi 78 drive

Hi guys,
I'm new to this forum...
I was trying to flash my hitachi 78 drive. I followed textbook's guide. I'm using my onboard sata port (nforce controller). I was able to put hitachi 78 drive in modeB using slax. Then I restarted the computer, bios found the drive. When I put the original game and got into windows desktop; i checked My Computer, hitachi 78 showed up for a few second then disappear. It was not recognized by windows, so I was not able to flash it. Please help. thank you