proteg3

Okay Im hoping this is something other people have experienced, i need some help. A friend of mine has a laptop that is almost identical to mine, only difference really is that hers runs XP and mine runs vista, but they both are under a year old. anyway, we loaded windows plus pack (with all the screensavers and themes?) on her laptop, i had a copy of the disc laying around i'd used on my desktop (which still runs XP) and after loading it, we noticed her laptop will no longer activate its screensavers period. its not a videocard issue cause you can still rightclick the screen and pull up properties/screensavers and preveiw them, the look just fine. but the computer just won't activate them of its own accord. Whats wrong and how can i fix it?