One thought... make sure you remove any older versions of the phidgets msi BEFORE installing a new one. I've only just got my 0/256/0 and haven't tested that yet. All my other phidgets have been fairly well hammered under msi-1.3.3.0.C and behave without problem. File upload is now complete - try running a few of the demo progs and see what happens! Please do let me know. Cheers, Roy.