I have tried to play GTA IV with my Logitech Driving force pro, and I downloaded a xbox 360 emulator and I also added a "commandline" text file in the GTA IV directory and installed the drivers for the wheel.
It does work to some extent because I can use the pedals just like I want to, they respond well, and the car react when I turn the wheel, but the thing is I have to use alot of force to turn the wheel in itself, its like it is not calibrated properly.
I have checked in the control panel under gaming devices and it does respond in the settings when I turn it, as it does in the game but it is not working when I have to use so much strenght.
I suspect there is a simple solution to this but I so not know what it is.
The game looks to be quite a bit of fun with a wheel though if I can just get it to work properly