game freezes after about 10 or 15 minutes

[5./JG27.Farber]

Sometimes when the game installs User Account Controls interfere with the install. Stopping direct x and dot net frame work from installing. (game installs dot net framework 3.5 by the way, not the new 4!) However if this was the case your game would probably not start. Might be insufficent ram or some kind of fire wall, anti virus (one of our guys had a problem like that with some program called "spyware doctor" - it protected his computer by not letting him use it ).