TGirl--I believe 4.* was supposed to solve many of the problems created by 3.*, so, I'm guessing it wouldn't hurt. My bro had 3.* and was having problems, and updating the ASPI layer (4.60 is the latest I've seen) solved the problems he was having.
Adaptec is supposed to have several forums which might discuss problems such as this.
BlackFlagg--Yes, Nero has an indepth help on their site. I downloaded it...seems like it was about 4MB, and I believe it was called something like HELPENG.EXE. It offers numerous possiblities to allow coexistance with other mastering programs, also. It even takes you through setting up a step-by-step dual boot Nero/Acraptec. Also, it lists files that are known to possibly conflict with Nero....not just from Adaptec, but also, Seagate Backup and others.
I know, because I recently removed them all from a g/f's system. At least Nero acknowledges that there are problems, and does offer possible solutions. Nice touch, IMO.
--Randy