REPAIR DEPT. is INCOMPETENT. The computer wouldn't charge when it first arrived. It wouldn't work even on AC. The customer service was completely inflexible. They made me pay $30 to send it back for repairs. It took over 3 weeks, and all they did was replace the power cord. They didn't check the mother board or any other issues with the power supply. I had the same issue when I got the computer back and had to send it in again for repairs. They refused to put a rush on the order. Refused to send a replacement computer. I start a new job in Sept, in which I needed the computer and this will severely affect my job performance. The computer is piece of crap. BUY FROM ACER AT YOUR OWN RISK!.