No, actually, your problem is that you are trying to perform what is called a *hijack* of a thread. Your problem has nothing to do with the problem being discussed in the thread, so we ask that you make a new thread instead of attaching to unrelated threads.
Now then, as to your problem - some laptop manufacturers will only allow drivers from their own websites - meaning you cannot use nVidia drivers from nVidia, only from Dell. Get the latest Vista drivers for your laptop and video card and see if it helps.