Problem with invisibile units
I've installed the game (saga version), title video and everything run fine, start up a tutorial or normal game, and the units and buildings are invisible! If you click the "idle worker" button, it selects a worker (who is invisible), and you can move him around (the invisible space is surrounded by the selection cursor, so you can see where he is/should be), but the actual units and buildings themselves don't show up!
I read around a LOT of forums and this question has been posted a few times, but never answered, and I did a long search of most of the topics on this forum and didn't see this issue come up.
I'm running Xp, an amd athlon 3500+ with 1GB of ram, and an nvidia gforce 7600 card.