Brink text lettering bug. PC Game.?

ok so i just got brink not to long ago, if you dont know what the game is leave now because you're probably no help, but anyways the text lettering is really buggy. almost always there will be some letters, not all, that just turn to boxes with weird lines in them, really pixely. i was wondering if this happened to anyone else and if they know how to fix it. any help?