I think I have fixed the issue thanks to these threads:
http://forum.ppcgeeks.com/showthread.php?t=92926
http://forum.ppcgeeks.com/showthread.php?t=93131
Seems this issue is not limited to the Treo Pro. Here is what worked for me. I downloaded the xtra.bin file from this thread
http://forum.ppcgeeks.com/showthread.php?t=92926&page=6 (post 59) and the program FileDate.exe from this thread
http://forum.ppcgeeks.com/showthread.php?t=93131&page=10 (post 92). I extracted the xtra.bin file to my desktop and changed the created, modified, and accessed dates to today using Filedate.exe. I then backed up the xtra.bin file from My Device\Windows just in case I needed it to some other folder on my laptop. I then copied the modified xtra.bin file from my desktop to My Device\Windows and My Device\Temp folders. Then I started QuickGPS and went to Menu\Options and unchecked all boxes and then soft reset. Since then, even after several soft resets, I have been able to use GPS in ALL my GPS enabled software including:
Google Maps
Bing
BackCountry Navigator
Garmin Mobile XT
GPS Tuner
iGO 8
Delorme Street Atlas Handheld 2009
TomTom 7
TrackyPro
Sprint Navigation
Hope this works for others also.