My 2006 Buick Rendezvous is the worst car I've bought. A few days after I purchased it (fairly new, low mileage), I experienced problems starting it up. We then found out the battery cells were dead. So we purchased a new battery...the car was fine. A week later my power windows stop working and a week after there was that recurring problem starting it. I have had the battery tested...of course it was good. I've yet to completely and thoroughly get it checked by a certified mechanic. The guy at Autozone did test the battery and said that the starter and alternator seemed fine. I have no clue to what may be causing it to not start (take no charge) and affect my power windows. Autobeef, I'm so frigging mad. I WANT MY F*CKIN MONEY BACK!!!!