StarCraft II 720p Toshiba A665D-S6059 Rendering Errors

Toshiba's A665D-S6059 looks like a good laptop for gaming, but unfortunately drivers let it down. Here's a clip showing rendering of StarCraft II. The grass and other textures should be "High" but look like "Medium", and many special lighting effects fail. (Note: A replacement laptop worked fine; full review at http://www.anandtech.com/show/3883/to...)