I have a pc with 3 monitors, 2 connected to a ATI 3870 card and one connected to the onboard 785G HDMI connection. The HDMI one is a 32inch LCD TV. When I put a video to play on the big tv, a popup appears saying that window is performing slowly and recommends shifting from aero to basic. I checked the memory and performance of the pc and everything seems fine. I thought maybe the 785G couldn't handle Aero but every article I read says it can so I'm at a loss as to what to do.