hello Jima,
In full agreement with what Artemis said.
Your gonna have to switch sooner or later
and if by chance something does go agoof, these boards will help sort it out.
I was like you, and was hestitant on making the switch, because of what was being said here, two weeks ago i upgraded from 4.8 free to 5.0 free, on two different vista laptops, with no problems!
5.0 is awesome, much diffferent that 4.8.
I think you'd be glad you made the switch and will be wishing you did it sooner
Saty