As of 6-23-2011, the "Motorola USB
Drivers (for Windows)", called, "MotoHelper_2.0.49_Driver_5.0.0", work great:
USB and PC Charging Drivers - Motorola Mobility, Inc. USA
There's also a phone charging program at the bottom of the page. I haven't needed/tested it. If you do install the USB
driver, you ARE supposed to install it AFTER Motorola Phone Tools (the
Driver above.) Last on that, I think, IIRC, that the "PC
Driver 2" was the right one, for my regular old Razer. Forget how I figured out which one to use, or even if I did. GL! (I don't think it's needed, I think the first Driver charges the phone anyway.)