So far all digitizer programmes can only calibrate at 320 x 320 including Palm's built-in digitizer. The common issue with T3s is that the digitizer may shift over time, making it impossible to tap at the Status Bar. Now there is a digitizer (320 x480) that can fix this while we all wait for PalmOne to come out with a fix. Calibrate with slider open. http://www.freewarepalm.com/utilities/digie.shtml
Here is the response from the author:
[Feb 14, 2004] by Junbin
Hi, this is the author again. Recently the T3 it seems suffer from some digitizer problem also. If you really have to use DigiE to solve your digitizer problem (at least temporarily until you get Palm to exchange the unit for you), try the following : 1. Install DigiE and run it as usual. 2. Perform the calibration. 3. Delete DigiE from your handheld 4. Perform a soft reset. Reports from users at palm user group forums have said that this will allow DigiE to solve the calibration problem, and yet overcome the "Auto-On" bug... My regrets that I have not the time to work on this bug to make it more convenient for everyone...
Note: Instead of deleting DigiE, you can move it to /Palm/Launcher then do a soft reset. That way, it won't interfere with Auto Sleep while still allow access whenever you need. it
Don't use this if you have NO digitizer issues