I've got GTA4 for the PC, I don't use a controller (I use keyboard + mouse).
I've managed to map the keys and mouse how I'd like it but the problem I'm having is with the Bowling and Pool mini-games (maybe others too).
When the instructions tell me to move the MOUSE back, then forward... I do so but nothing happens. When I try it with the pool mini-game, it looks like the mouse action is stuttering badly and when I push the mouse forward, it hits the ball very very lightly no matter how much force I use.
This wasn't an issue on GTA:SA.
Has anyone else found this issue? I'm using a USB Optical Mouse - nothing out of the ordinary.