Yes.
At first I thought it was the mod. But I think it started when I updated my graphic card drivers.
My card is NVIDIA GeForce Go 7950 GTX. It might not be my card, I have no idea at this point. I originally installed the game and ran it to see if it was ok, and there was nothing wrong, so it's probably something I did after that right? All I've done is install mods and updated my graphics card.
After looking everywhere I was lead to this forum,
http://www.shsforums.net/index.php?showtopic=30840&st=0 and the nvida fix in the OP post, I installed that too, but it made no difference.
I'm stuck.
Here's a picture of it happening
http://img38.imageshack.us/img38/5890/nameless.jpg as you can see I'm moving him right across the sreen, and he's running backwards.