well I've had my AX for about 3 months now, and have gone from 3.7 - 3.8 - 4.0 and that exact same problem has occured with all3 versions, and after hard resets & windows uninstalls...
just going to try 4.1 tonight see if that has the same problem, but looks like usb drivers are being updated...
atm I cannot sync AT ALL now for last 5 days, even with uninstalls and soft resets... so hopefully 4.1 will fix this
