Ive got copies of Nero 7 Premium, Nero 6 Ultra and Nero 5.
Ok Nero 7 only lets me burn one dvd off my hard drive and crashes when i try to do a second i end up uninstalling it then reinstalling every time i want to burn off one dvd!

Nero 6 only lets me copy from disk to disk and nero 5 just crashes.

I have windows XP home.

Why am I having problems with all 3 software versions?

Please help!
TIA