I get this same problem, even though I updated. I even deleted everything and started over and updated again and I still get this problem.

I am using Windows XP home edition with an Intel 82845G/GL/GE/PE/GV Graphics Controller, an Intel Celeron 1.70 GHz processor,128 MB RAM, and a D-Link Airplus Xtreme G DWL-G132 wireless USB Adapter.
If you need to know anything else that I forgot

, please let me know, i really want to play this game.