For some reason whenever I watch a DVD or record onto a CD or DVD I am having some issues: 1. Watching DVD's is impossible as it is really sluggish and the audio is stuttered. At the same time the mouse movement is slow and trying to use any other programs is very slow. 2. Similar issues when recording onto media, everything slows down. ANy advice would be appreciated. I have tried re-installing the drivers but it does not seem to make any difference.