lamborghini gallardo racing wheel support

Hi I have a Lamborghini Gallardo racing wheel and when I play GT5 on ps3 the cursor keeps moving to the left so say I have selected a car on the far right it will slowly move back over to the left and it doesn't do this when I unplug the wheel so if anyone knows what to do that would be great thanks

You should be able to check out the button layout in the options menu in the game. Maybe it's trying to use steering inputs as menu navigation?

Ok but what should I change the button layout to?

Any more ideas?