I love to watch Full HD movies on my Samsung LED tv. The only problem is that my PC (Toshiba A300 1|4) lags when playing 1080p, sometimes the image stops briefly and that is really annoying. Only playing 720p this won't happen. I've seizing a Macbook pro, but I have not bought it yet because my pc is still OK, unless for this detail, so my question is: will a new macbook pro 13" play 1080p movies without lagging and with "perfect" image? and is there quality loss when using the mini-DVI to HDMI adapter when playing Full HD movies on my tv?