> I tried just about every key and couldn't get that damn pit limiter
> light to go out. >:|
>
> I'm going to try downloading the official demo from the site Tony
> suggested.

There's probably no need to do something that drastic -- sometimes GTR
will bind the pit limiter to something goofy without telling you. Try
going into the options and resetting the binding to something sensible,
like "l", or a wheel button.