While watching DiVX movies with either the ffdshow or DiVX codec, there is alot of well, "blockyness". Most of the time I watch them with my monitor set to 1024x768. Is this too high? When I set it down to 800x600, the blockyness goes away but everything is a bit blurry. I'm using an ATI Radoen 7500 and a Envision 770-e monitor. Any advice is greatly appreciated.