When I run setup to install Quickmap, it keeps telling me System files are out of date, even though I click “Yes” to update them, and let the computer reboot. Why is the QuickMap install stuck in this loop?

To fix this problem, upgrade to QuickMap Version 6 (March 2006) or better.

If upgrading is not possible then follow this url http://support.microsoft.com/kb/q191096/ for Microsoft help.