no worries well this is how the sensitivity is set-up on mine but i don't think i've actually changed it, which is probably why when i take steering and throttle assists off it's a little wild.
As far as running HW and SW modes i've always run in HW mode so not entirely sure what you mean... if you have the game set up to run in HW mode then if you run a HW upgrade or season(?) then it should run without any probs.
Although in theory even if you have your game set to run as software mode, it should still work, it will just reduce the graphics quality. I think?
I always get a black screen when firing GPXdata up because i use vista so it asks permission to run it, but mine works ok.
I hope that helps if not hopefully somone else may hold the answer.
"Racing is LIFE. Anything before or after is just waiting"Steve McQueen.