Im having a very similer issue

i have an nvidea 6200 graphics card its 512 and have the latest dx and now i even have a legit copy of mohaa got the 10th aniversery that came with a bunch of em 20$ wallmart was sweet but heres the problem im having
when i start the game the ea logo screen works just fine but when it goes to the actual screen its just a bunch of blocks and i cant make ne thing out best i can do is see the blocks light up when i go over something i can click on and its doing that for each expansion as well