Prob With Running Ghost Recon

[Mr. Mulder]

I've got a shop bought copy of TC's Ghost recon and have managed to install it properly. The game runs very smoothly and there's nothing wrong with the actual performance of the game. Its just that sometimes when I click the mouse button the screen minimizes its self? This happens quite alot?

Any ideas?

[**GASHA**]

Can you be more specific ?

When you fire the gun ?

Crouching ?