OK, so Windows XP running the older DirectRT v2008.1.13 and still no luck? That's very odd now because Joysticks have been used with that version for quite a while with no issues. So to get this result on multiple machines would normally make me think it has something to do with the input file but you say the problem occur rs with the samples which accompany DirectRT (I presume they are unaltered?). Any chance I could log onto the XP machine and take a look around for a possible cause? e.g., with you there to move the joystick?