I just picked up a Nexus One last week and love it so far. But when I first set it up, I configured it to use my Google VoOice for Voicemail. But I changed my mind and rather use T-mobile's voicemail. I changed the settings (Settings / Call settings / Voicemail service) from Google Voice to My carrier, but it didn't seem to take the change. I have toggled the setting several times and still has not helped. Any ideas? Thanks!