OK so when i try to open a game it says cannot create D3D i dont know what that means but i have tryed changing the lauch setting on properties and it stil didnt work
i have a 660 navidia graphics can anyone help?

Your steam account doesn't appear to be VAC banned. You would be allowed on most servers no problem if you could get your game to start.

The problem is therefore in your computer or your internet connection.
Go find the game folder and look for the Microsoft redist installers (these ran automatically when you first ran the game). Re-run and then try the game again from your game library list.

Have these games worked before on this particular machine? Check the hardware requirements of one game and if you meet or exceed them and that particular game doesn't work come back here for more random help.

If you know your hardware you can tell us in advance (do not tell passwords, usernames) and what game you're trying. There is also a sub-forum for each game, so maybe look there for your answer too.

ok ill try

what do u mean redist installers i dont seem to find it

Lets start with what game you're trying right now. Then I can tell you where.

umm i have more than one game but ill list them battle front 2,left 4 dead 2,zombie panic,counter strike

oh forgot rome total war

I just installed the original counter-strike(steam version). It doesn't seem to have one of those obvious folders or first-time installers.

So lets start troubleshooting counter-strike.

Perhaps your game has been set to D3D mode and its not letting you back in to switch it to OpenGL or Software.
Put -autoconfig in the launch options and launch and exit once, then remove -autoconfig so it doesn't reset your graphics every time you start it. Then you can at least get to the graphics settings again. Once you have it running, don't set it to D3D unless by magic it works. Otherwise you'll have to reset again.

SO NOW WHAT? but thanks for trying to help! i did that?

Follow the instructions given in this Support Article and see if it helps:
Steam Support -> Games do not run after 'Preparing to Launch'

k thanks!

that didnt work :(