It happens at missions, lan and internet games. Game does not take ANY input from me, but I can see everything (Worms moving, shooting - the enemy ones of course.) All I can do is Ctrl+alt+del. It happens in ratio like this normal/crashed/normal/crashed/normal/crashed.

It happens at missions, lan and internet games as mentioned before. This is getting very annoying, help me out.

sounds like a pirated copy of the game.

Its not.... Any suggestions?

see if certain programs (e.g. microsoft office, web browsers, etc.) are open. if they are, close them down.