Greetings,
I just bought my own copy of Lock On: Modern Air Combat. Everything looks ok, FPS is fine. The problem begins when I want to have a game with friend through LAN. When I create server, he joins me and we start the game, I get FPS below 1. Its worse than slideshow. Do you have idea, whats wrong with it? Is it my local problem or bug of a game?

My version is 1.02.

I had the same problem and was told it is common for anyone with a nVidia nForce 2 based LAN controller (on board the motherboard).
Not sure if there is a fix.