As far as I know the system wine is the one I've just compiled. make install was ran, and wine --version returns wine-0.9.56. Environment variables always confused me. Not something I've paid much attention to. Even so, I've ran the command you suggested, and updated my Google doc with the new output. http://docs.google.com/Doc?id=df8c5djt_2zqvd3df2 I had to do two takes on this, first time I tried and tried and couldn't get a divide by zero, although the axis inversion and jumping still ocoured. Thanks muchly for the help with this.