[digi]

I have a TP2 on an Alltel plan, GPS works fine.

Most of you did not say what ROM you're using. Make sure you don't have any reg keys at HKLM/Software/HTC/SUPL AGPS

If you do, delete the entire thing, and I bet donuts your GPS will work. I bet it works on some, and not on others because most people still use tweaks and cabs and OEMS from their old TP's which needed this key to work on older radios, the newer TP radios, and all TP2 radios do not, and will not work with this key.