Hei!
I've a big problem.
After installing cod4, my counter strike doesn't works anymore, I mean it's not starting and the only way I could ever play it again, is to uninstall cod4 :>
Any ideas ? Is anyone ever face up to problem like this ? :S

Stop playing Counter Strike :D, not honestly no idea

reinstall your OS, maybe it would help

No dont reinstall dont your OS! Thats the last thing to do if nothing works. Go to steam forums and ask there.
http://forums.steampowered.com/forums/index.php?area=forum

cod incompatible with cs... thats weird

i dont have any idea to your problem because i have cs 1.6,CoD2,CoD3,CoD4 and CoD 5 in my computer and i can still play cs 1.6