The problem I have with my TIR5 is that the none of the mapped hot-keys are recognized in-game. If I Alt-Tab to the TrackIR control panel, I can use them - but as soon as I switch back to Arma2 it stops working. I've tried several, unique key-binds to no avail. I'm using the Steam version of Arma2, so I'm wondering if their overlay is interfering somehow. I'm using 5.0 beta B software. The "about" dialog shows 5.0.300 build 6225 however.