The crash happens at one of two times. One is when I click Multiplayer from the main menu, the other is when I click "Go" on the Create New Game menu. I get the "blue screen of death" and my computer restarts. Any ideas?
To turn off automatic reboots on BSOD do the following (assuming Windows XP - let me know if its not);
Right Click on "My Computer"
Goto "Properties"
Goto "Advanced"
Click on "Settings" in the "Startup and Recovery" section (at the bottom)
Under "System Failure", turn off "Automatically Restart"
That should give you a BSOD you can give us more details with. If you're also running Windows XP Professional, check the event logs (Right click "My Computer", goto "Manage", its under "System Tools") during the times it Blue Screens. See if there are any errors.