Ok, I'll bite.
What do you mean by " all the windows live facilities will happily start in my admin user, but in my other users i get no response " - is this when you try and run them, or when you try and login to Windows Live?
By "admin user", do you have a seperate windows desktop \ login for this user, or do you use 'Run as administrator'?
Do you get any messages or errors when you try?
Oh, what operating system are you using, XP, Vista, Windows 7?
Any specific Windows Live service that you notice the problem with?