Don't dispair, Jim, I'm sure this will work out (and besides I have vista64
).
After fooling with this awhile I think the problem may be in the installer: the only problem is that MA3 disappears when you change screensavers, but it can be re-installed with the desktop icon.
What I did:
1. uninstall MA2.6 and MA3.
2. clean registry w CCleaner and restart.
3. found entry in HKEY Current User but not in Local Machine (see pics).
4. manually deleted entries.
5. reinstalled MA3.
6. still get "PSerene...." in list (this is odd), and would not autolaunch.
7. checked icon "install" -"PSerene..." disappears and SS works.
8. still does not ask to re-enter keycode, so don't know where that's hiding.
9. don't know about hibernate mode yet, but will check later. It may be a function of my motherboard: it has Asus AI Nap mode, and I don't know if there is a problem with that.
added pic in case they help.
Can't do more today. My wife is making me go to a Superbowl party