[t0adman]

I get it pretty frequently because I live on a hill overlooking Lake Washington and service is spotty at best. Whenever the phone fails to make a data connection you get the #777 error. Last week my data service failed to initialize after phone setup (after a hard reset while screwing around with Sense 2.5) and I got the #777 error repeatedly. Once the data connection was reset it went away. Unless you get it all the time, I find it a good reminder that I wasn't able to make a data connection. It's annoying as all hell when it comes up every 10 seconds though.