Vcard on laptop: ATI Mobility Radeon 4300 Series
I have been trying to install Arma2/OA onto my brothers laptop and have run steam as admin, verified catche(all 100%), redownloaded Dx and Beye, updated all drivers and everything seems normal except when I try and start the game I get the steam message "Preparing to launch" and then nothing happens, no checkboxes etc.. This happens with both Arma2 and OA, if I try run combined ops I get a config screen which fills with text then nothing else happens. My friends list shows me as playing the game for maybe 2seconds but I get no screen as if anything has happened.
His laptop can run cod:bo and other more recent games and my old laptop with a NVIDIA Geforce 8600M GT which is older can run Arma2 etc except the framerate is very poor even on really low settings. As far as I can tell his laptop should be able to run it at the very least but I can't even get into the game.
Any ideas?