Mike and kabkbak,
Those were the first two things I tried
and neither one fixed the issue.
Thanks though, I'll keep trying
One other thing, I have RJShortcuts installed on the phone and have changed the front screen. One of the things I did with RJShortcuts is place a few program icons on the front screen so that I can access them directly from there. The icons I had for PStreets and Mapopolis now just show question marks. I don't know if the installation of RJShortcuts could have contributed to this issue or not (I doubt it, but just wanted to throw it out there).