The HP DVD1260 is picked up perfectly by the BIOS and I can boot off of it, but windows 7 won't see it and I don't know why. I've tried Device Manager --> scan for hardware changes and it doesn't find the HP DVD-RW. Anyone have any ideas?
I jacked up the Vcache to 1.425V w/a cache speed at 3639Mhz. and the DVD-RW suddenly showed up in Windows 7. But the BIOS had no problems picking the DVD-RW up or booting off it with the Vcache at 1.280V.
Maybe some kind of weird glitch with anti-virus or security software? Try uninstalling that if you have any (I don't use any) and see if the drive is detected. If not that, then I'd say your Windows 7 installation is corrupted if it works everywhere except within the OS environment.