1-right check its on high again, if not make sure you select apply, the game should open a loading screen instead of snapping staight back to the menu.
2-next try upping the resolution again remeber to APPLY but this time there wont be a load
3- close AOM and look at the bottom right corner of the screen. close all the programs runnig here which arent need to run the computer or AOM, things like fire walls anti viruses, MSN messenger etc then restart the game.
4- restart the computer
5- unplug the computer while its off for about 15 seconds
finally if problems continue reinstall, then repeat 1,2,3,4 and 5 if it still happens spending the money on a grafics card is your only choice.
Out Reach
The guy who writes the erotic fan fiction in Yeebaagoon's signature