Help with DVD740i

I’m having problems with my dvd740i drive. I recently had to re-install my OS and now my drive is not functioning properly. It will read with no problem and burn DVDs or ISO CDs in DVD Decrypter, but I can not burn data CDs, DVDs nor music CDs and DVDs via Nero or Record Now. I have flashed the drive to the latest firmware (link found on this site), but that has not solved my problem. Why is the drive functioning perfectly fine with DVD Decrypter, but I get an EndTrack error in Nero and a hardware Servo error in Record Now? Any help would be greatly appreciated.

How about deleting the ide drivers as a place to start. Windows will re-install them when rebooted.