Hi homegrainer, I've posted this a few times lately re: issues like this, hopefully this will help you out.
First off, fab has nothing to do with system restore being enabled/disabled.
Be certain you have your reg key or retieve here.
Uninstall fab completely.
Run a reg cleaner - only if you're comfortable doing this. I recommend regseeker. It's free, relatively safe - as cleaners go and effective. Personally, I've never had or heard of a problem with it...just don't uncheck "Backup before deletion"...it's checked as a default setting.
Install fab from a brand new download.
Use you reg key, reboot and you should be good to go.
Good luck, hope this helps.