I was able to use my Treo 650 as DUN with T-Mobile T-Zones over bluetooth just fine with my PowerBook running OS X 10.3.9. But since I've upgraded to Tiger (10.4.1), I just can't connect: I'm using the Generic 3G CID1 as the modem script (just as I did under 10.3.9), but the Internet Connect log says "connect script failed."

Has anyone gotten their Treo 650 to work properly as DUN with T-Zones under Tiger?