I'm having this issue. Just downloaded the game through steam last night and did the install this morning. When turning on the game, the cut scenes were fine then I was getting the graphical problem listed in all these posts. First off, thank you all for your feed back. I've tried just about everything listed here other than a complete re-install ( which I am doing now ). If this does not work then I am at a complete loss of what to do. My graphics card should be able to handle this game just fine. I do not seem to lag at all, just the graphics with the flora. I have also played other games such as WoW, ME2, DA and LOTRO with out any problems at all. If anyone else has a solution, please post!
My computer specs are:
Windows 7 Premium 64 bit
Intel core i7 @ 2.93 GHz
8152 MB Ram
1.24 TB free memory
ATI Radeon HD 5700 series graphics
Catalyst version 10.10