Steam won't launch games?

For some reason Steam won't launch any games. I've tried Crysis and Crysis Warhead (the only two games I have on Steam haha) and neither will launch. Steam just says "Launching game" then goes to a black screen then the game freezes. Steam is up to date as are the games. The games used to launch. I just upgraded my video card and put my computer into a new case. The new video card is an XFX Radeon HD 5870.



Help?



Thanks! :)Steam won't launch games?
Try these:



right click on crysis in the steam games menu

click properties go the the "local files" tab

click "verify integrity of game cache"

when it is done try to run crysis

if it didnt work try this:



Go into My Computer

go into the C: drive (local disk)

go into ''program files"

open the "steam" folder

open the "steamapps" folder

go into the "common" folder

go into the "crysis" folder

look for an EXE called crysis or cry or something

when you click the right EXE the game will start. if the same problem happens then the problem is with Crysis, not Steam.

If the game starts correctly then you will have to create a shortcut to the EXE and use that to play the game.

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