Over the past 7-10 days I've noticed the oddest pTunes behavior. I work in downtown DC and consistently get 3-4 strength bars on my Sprint 650. Lately I cannot get pTunes to stream anything around my office. When I get home (suburban MD), I can stream, even with 2 strength bars. It's been this way every day for over a week and normally I can stream even high bit-rate feeds with no problem. I've changed nothing relating to the network or pTunes (v. 3.0.9). Anyone else in downtown DC having streaming problems on Sprint?