mw2 screen problem

i did use what was said on http://www.mpgh.net/forum/228-call-d...w2-screen.html

i usaed alt + enter in game and that did work but i want to make it go back to full screen how do i do that

...click alt + enter again? And it's really bad that you have 6 threads about the basic stuff that is covered in all tutorials and FAQs..