Wi-Fi B/G and BT all run on the same 2.4GHz, the reason for the interference (possibly since channels could also provide minimal isolation or difference); only Wi-Fi A runs on 5GHz (less saturated frequency)
DeanQ, to further isolate your issue, since i'm sure you've tried turning off the Wi-Fi on the Curve, why don't you try to turn off your Wi-Fi router or try turning off your 2.4GHz landline phones, as well and let us know what happens; worst-case, try to reinstall your OS (wipe first) and make sure you don't touch the Curve at all when it's talking to your PC/Mac; all else, then that's the time we press TMo to post a fix on this Wi-Fi/BT issue..
if i can do battery pulls all day, i would; thankfully, my Curve works 110%!
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