I wonder what conflicts they are referring when they said GoBack is going to have issues with SP2.

It’s not that GoBack does anything more than store changes and reverting changes… :-\

MS: If you install this program, you receive the “DRIVER_OR_IRQ_NOT_EQUAL” error every time your computer starts.

Well, no such error on my system.
Maybe because 1. I have a 32 bit processor. 2. I can’t have NX enabled. 3. I have the Pro version.