I have an 8830 (Sprint) with a curious quirk: EV1X (actually, all data) tends to die when using the BB browser. Maybe 50% of the time, while using the browser (often during downloads, but sometimes not), I'll get the "you're not in a service area" message. Sure enough, the EV1X is gone. If I check my wireless settings, it says "On" instead of "Sprint PCS." I can turn off wireless and then back on to restore.

Sprint just says "do a battery pull" but has nothing further that could possibly be causing this.

Any ideas? I believe I have the latest OS from Sprint's web site. Any way to force my BB to be more tolerant about keeping the signal?

One last note: I do have my BB set to turn off data while roaming. But I'm in areas where I have a strong signal where this happens, so I don't think that's it.