I upgraded to window media 11. turned the phone off and plugged it in to the usb cord. booted the phone up and now it works. only drawback is every time I do this, it opens windows media player and attempts to sync. Not a big deal for me.
open explorer and my phone is listed as Galaxy Nexus. The sub folder is called internal storage.
works like a charm now without needing to reboot my phone every time I need to move something over