When i want to run hl2 or any other game i have from the steam my games list the screen only flickers to black color and my desktop and then the game doesnt start up at all! I had this problem once and the thing that helped was reinstall but is there another way? Cuz i really dont want to spend hours on reinstalling.
Ok i got hl2 dm to work, well sorta:It plays the valve intro in a window (no windows xp "framing" around it) and shows the first screen but then crashes...
EDIT: btw for cstrike:source it also flickers the menu screen in a small "unframed" window.
ok ill just reinstall so admins can lock this
I don't think the game takes hours to install.. Like you said just reinstall it.