Some people are reporting Google Maps failing to work after working fine for months. Horror of horrors how can we live with out Google Maps?
To fix this go into Google Maps and hit the menu key; Select Options -> Erase All and perform a soft reset on your phone. This seems to fix most people’s problems.
You should also set Blazer to clean out the cache on exit Menu; Options -> Preferences -> Advanced and check the ‘Clear cache on exit’
Letting caches especially those related to internet usage get large seems to be the root of many Treo online problems.
Google Maps for Palm is now at version 1.1.1 update if you are having trouble and not up to the newest version.