Sounds like a texture problem... Are you running in a window? If so, try fullscreen and see if that helps.
Nah, I'm running it in fullscreen mode. (Window mode leaves me vaguely nauseous for some reason. That was one of my primary gripes about SLS...)
EDIT: The wierd blueness seems to be connected to the night time view of Downtown. If I switch it to daytime, the blueness disappears. So my neighborhood view seems to be screwed up. Hope it's not a BFBVFS in the making. I don't have enough $$ for a computer upgrade.