i have a imac desktop (right out of the box) w/ intel core 2 duo processor 2.46mhz, ati radeon hd 2600pro vid card w/ 256mb. i am running parallels 3.0 for mac, in order to run windows vista. i would like to run a few, newer, games on this platform but i keep getting a error message saying that the vid card is not supported. what should i do. if you have any idea please be "very" explicit in your instructions. thanks. the games are medal of honor airborne, call of duty 4 modern warfare and age of empires w/ a couple expansion packs