i just got the trail version on vista. the thing is i started to make the game on xp with the free version then i moved to a new computer with vista and used the trail version. i already did all the necisary things to change the code so when i run it, it opens fine but then its just a black screen that goes away and nothing else. does anyone have any advice

the same thing is happening to me. I'm not sure what it is. I started on vista and everything works fine but when I go to run the level in WED or preview a model in MED the screen comes up and then goes away almost immediatly.