Thanks to all for the quick replies - This is something that (favorably) impressed me about this group and webpage service.
Marvin:
I dumped S&T2005 before I installed Streets & Trips 2010 (from the downloaded trail version). Since I no longer have S&T05 installed I haven't tried to cut & paste (as found in another thread). When starting from explorer - I can double-click on anyone of the map files located in the folder there and receive the following message:
This file was created with an older version of the map. Before you can open this file, your records must be matched to the updated map. Click OK to match the records and open the file. -- Click on OK (of course) and:
Failed to open document - followed by the Streets & Trips program closing.
Alternately I have also tried by first opening S&T10, then File-Open, and pick any map file. This method also results with receiving the same messages as above (only S&T remains open at the default location).
With this (and a few other minor problems) I'm actually pondering the total wipeout and reformat of my hard drive since I have a partition (to originally dedicate it solely to and separate the OS from programs and data) that I can no longer work around (Windows upgrades have consumed too much room and my C: drive is now short on room - therefore the reason for dumping S&T05, plus many other progams I don't often use). Maybe a complete reload will solve my problems in the long, long, long run (going to take seemingly forever to reload OS, updates, programs & files).
Dave