I have an Acer Travelmate C300. It has a DVD drive. It plays DVD well in Windows Media player. However, whenever it is projected from the laptop onto a screen it takes a huge performance hit. The voices don't match the people talking and sometimes it hesitates. I've tried closing all unnecessary programs and services. It did not help. I'm wondering why when it is projected that it has the performance problem. A similar Travelmate C310 does not have this problem. Any suggestions on how to fix this?