malleable

I'm gonna need you to be a bit more specific, friend. (yes, I've tried the Help, but no luck.) I gave an in depth, accurate description of my problem, and it seems you are asking me questions about something I already answered.

I have a NH900 Hi-MD. Bought the thing before Sony would allow hi-speed uploading, so any analog recordings I made, I transferred through my sound card in real time. (Slow, yes, but it worked.) Now that the software fix is out, I've got some stuff I want to upload to my computer via USB, but I can't see to get it to work. I recently downloaded SonicStage 3.0. I've got some sound files I recorded from a tape deck onto my MD. (Of course, I want to get them into my computer, transfer them to .wav, and burn them to CD.) When I plug my MD up to the computer via USB, the unit's screen says PC--MD, and further up in the right corner says "Hi-MD." When I open SonicStage and click the transfer button, it says in the window, "Device/media not connected." Though, when I open up the System settings under the control panel of my PC, the Device Manager lists my MD under "Disk Drives" as well as "Universal Serial Bus Controllers." When I click on the My Computer icon on my desktop, and on the corresponding drive letter for my MD, it lists a folder "Hmdhifi," with files in it, though all with the extension of .hma. What's my issue? (I'm using Windows 98SE.)