Alright, when I first got my Droid, it did that much. It showed up. As for Motorola's media manager via computer, it worked..once. Afterwards, it could not connect to my droid no matter what mode I set it to. My droid reads the SD card and it's own storage, but my computer pick up neither.
An error message I get while connecting the droid is this one, "MTP USB device not successfully installed." Well, this would seem like a critical feature, and for whatever reason, it is not installing.
Windows 7 Home Edition 64bit
2.8GHz Quad Core processor (AMD Athlon II)