This may be a stupid obvious question to ask, but im having trouble minimising worms, the only way i can find to minimise it is via using the ctrl+alt+del keys bringing up the task manager, however as soon as i close the task manager it switches back to the worms screen. Ive tried using the windows key but it doesnt have any effect. Anyone know the solution?

Hmm, I can tab out of worms just fine. Alt + Tab puts the game in window mode untill you click it again and it will go fullscreen again. So it's probably your video card not supporting it with that game.

If you really need to tab alot perhaps you should just play the game in window mode, but have the resolution the same as your screensize so it looks fullscreen.