[whitey10tc]

AGPS uses an EVDO signal when possible. and programs like Gmaps. will most likely require a EVDO signal.
As for your EPST setting set it to auto and in the phone setting menu change the mode of operations to hybrid. You can also check the following, your GPSone setting in QPST your IP could have changed, also check your SUPL AGPS ip in the registry.

This of course all assumes that your phone strictly uses EVDO for all data, and 1X for talk and text.