My 98 bonneville has frequently been stalling on me. It mostly happens when I first start the car up, or when I put the car in park after driving. But this week it happened to me while I was driving. When I try to restart the car it won't restart, but the weird thing is the windows won't work either. All the other electrical items in my car will work, except the windows. After playing around with the window switches for 5-10 minutes, the second the windows work the car will start. Once the car starts the check gauges light goes off. I have brought the car to my local pontiac dealership three times. The first time they said my battery cables were stripped. A week later it did it again. The second time I brought it in they said it was the pvc valve, but again it stalled. The third time they said they couldn't find anything wrong with it. I'm very frustrated. Anybody have any idea what could be causing this.