According to the horse’s mouth over at the Starcraft II forums
, a bug in the game affects players not playing with ENOUGH on screen details. Effectively, the game gets bored and begins redrawing the screen rapidly over-and-over at high speed, like giving a five-year old a sack of crayons and an espresso and making him sit quietly outside the dressing room while Mommy tries on dresses.
A workaround is given on the forum, and since this IS from a list of known problems, it’s pretty safe to assume that a patch or update will be onhand soon. Still, it’s odd to see a game that frags your system for NOT playing it hard enough.
Then again, this is Activision…