After years (on and off) trying to fix this problem I am finally giving up. I got only about 5 of nearly 50 tapes converted before it stopped working. I have reinstalled OSes, changed versions, restored to original, swapped ports, disconnected everything but the dongle, replaced the dongle, replaced the tape player, etc. The only conclusion I have left is that the USB ports are somehow damaged, especially since some users have said it stopped working in the middle of use and then got the dreaded "no 2.0" error message trying to reboot. Funny that the ports still work for every device I've ever plugged into the port else wise. If it stops working, that's the end of it. I see no success stories of people getting it to work again.