Guess u try to run it on a Laptop with shared memory, 28mb is not enough, if you can set it to 128 in BIOS it might work, but My guess is that you then will run low on RAM, put it on a stationary that have enough RAM and a graf card that fit the game (128mb according to gamespec bu I would't reccomend anything below 256mb for grafic card), u can use the LAP for a dedicated server tho, since it does not requier any grafic card at all to run in servermode.