BB Software :: Data Service Suddenly Stopped While Roaming

Have a blackberry bold (unlocked) bought from Wind in Italy with a sim card. I've run into a data roaming problem a few times, and am experiencing it right now while traveling in Austria. It worked fine roaming for several days, and then all of a sudden I can't get data service (just get a lower case gprs). I know the network is fine, since my husband's blackberry is working fine. And I know there's a roaming agreement in place, since it worked fine for several days.

I've tried all the obvious things: turned radio on and off, switched to 2G only, registered from the host routing table (never receive the registration), battery pull, and finally a reset to factory default settings. Still nothing. This has happened a couple times before when roaming in another country, and the only thing that seems to work is going back to Italy, when it all works fine again. I'm traveling for a while, so it would be very nice to get it working before returning home.