Nero 7 & iTunes

I can’t seem to burn on iTunes now that I have installed Nero 7. Even if I ununstall it still does not work. After doing a diagnostic in iTunes I got some error: Unsupported CD or DVD drive. It went on to say: Virtual drives can sometimes interfere with reading and writing CD’s in iTunes. If this is a virtual drive and you are having problems with other drives, try uninstalling the virtual CD application. I also seem to be having problems play some other media that you can double click on when you are on the internet. Not sure if these issues are related. HELP!