Can't burn correctly in Nero 5.5

I am currently using Nero 5.5 and 6.0 to try and get my burner working with Nero again. It’s a Plextor 12/10/32S on an Adaptec 29160 Controller. Now, this burner previously worked in Nero, and it works perfectly in other programs.

Nero, however, displays an odd behavior. It burns as unrealistic speeds, usually only burning for 30 seconds, and reports a successfull burn. Of course, the data on the CD is corrupt. I’ve reinstalled, cleaned the registry to the best of my ability, and uninstalled other software that I suspected of causing trouble, like CloneCD. The ElbyCDIO driver/device is what I figured was causing it, but that didn’t seem to fix it.

Any help would be greatly appreciated!