Hello everyone, first post.

I've been a longtime fan of this phone, but finally got one a couple days ago.

I'm using it on the AT&T network. I get almost full 2.5g bars everywhere.. except buildings.

When I walk into any store, my signal drops completely and I have no service. Call, data, etc.

A few questions:
After googling a bit, it seems people are having antenna issues after PR1.2 (1.3?). Would this be causing my problem? Or is it I'm using the AT&T network on a phone not made for it? Or could it be something wrong my specific model?

Also, are there any hacks to increase the antenna size of the cell portion of the phone? Is this possible? Would it make a difference? I'm pretty good at doing custom mods on small devices, just never a cell phone antenna.

Thank you