Sorry in advance for bumping an old thread, but I'm having this same issue on my Surface. The Micro SD card shows up as a device in MusicBee, which means I can't select it in the monitored folders window. Dragging and dropping music from an Explorer window also doesn't seem to work.
The only way I can import these songs is to have it copy the Windows media library during the initial startup. I even tried changing my librarysettings ini file to add the sd card folders manually, but MusicBee will still refuse to monitor them.
I'd like the option to set devices as regular drives, for when this issue occurs. It's a pretty major issue and means I'll have to stick with Windows Media Player on my laptop...
EDIT: I stand corrected. Editing the ini file did work, it just took a while and all my music showed up all at once. If anyone else is having this issue, give that a shot. I still think you shouldn't have to jump through those hoops, but I'm glad there's a workaround.
