How do i change my screen size from small window to full screen on cod mw 2?

I left cod mw2 playing and my dog has touched somthing on the keyboard now the game will only play in a small window on my desktop it was fine before the bloody dog got his paws on it. and it is fine on muliplayer but i cannot get it back on full screen on single player. i have tryed ctrl+ enter and profile and changing it to open in maximised window any help would be very welcome as i dont want to uninstall the game and loose all my stats.

thanks

leeHow do i change my screen size from small window to full screen on cod mw 2?
Just right click on the game icon and select properties

then under the shortcut tab you will see run

click on the drop down menu in front of run

select normal window and click apply and OK and then run your game...

if this doesnot work then go on the same properties again

and select maximized instead of normal window...

Hope this helps...