haven't had this, but perhaps a full power reset would suffice?
pull the battery
hold down the power button for 30-45seconds seconds to discharge any remaining electricity
just potential. it seems to fix most weird temporary bugs for me.
Mine has been doing this as well. Now not sure if its completely fixed or not but a few min ago i cut off the option to turn the speaker phone on when flipped and then used my wifes to call mine again and it was normal. So you can try that too
Yup aliens took over my TB and made it act crazy. Actually maybe it was Big Brother and they did it so they could hear over a mic hidden everywhere we were because they didnt think about just tapping the line to listen in on our conversation lol.
As cynical as I can be, highly doubt it. In all seriousness, the only common factor so far seems to be HTC. But, that's based on a limited info posted in this thread and doesn't seem logical or even possible. The only way to truly get to the bottom of the issue would be for everyone experiencing the problem to post exactly what apps they have installed and exactly what they're doing when the problem happens. Then logic could deduce exactly what the root cause may be! Or may be not...
Well last App I installed was Death Worm but that was a while back. Nothing new has been done since that time. As for what I was doing when it first happened, I was sitting at work and the phone rang. Once I answered it it went straight to speaker phone.