Hi there, as an introduction, my MBP is 2.66GHz i7 with the NVidia GeForce GT 330M. I realized that after say a few minutes of watching a 1080p movie, or any video for that matter, suddenly the video gets choppy and after closing VLC, noticed that the whole system gets a bit laggy. Is this common? It's been doing this for quite some time now but it's just getting to me now. Can anyone please offer me some suggestions and possibly a cure for this? Thank you for your time.