Hi ggilley,
Frustrating ay!
I got this SPECTACULAR support from Garmin's Tech Support and it fixed my MapSource woes ...
Good luck & cheers.
1. Go to the start menu in windows
2. Select the settings and then select the control panel.
3. In the control panel double click on the icon for ADD/REMOVE
PROGRAMS.
4. Select MapSource in the uninstall window. The software will ask to
if you wish to uninstall all the components, answer YES to this
option.
5. Next go to my computer and open the "c" drive, there you will see
a Garmin folder delete it.
6. Next go to Start and click on Run, type in %temp% and click ok,
this will bring you to your temp files, go to edit and click on select
all, then go to file and click on delete, once the files start being
deleted, there may be some that will give you an option to select yes or
no, select no you don't want to delete it, some may simply say that the
file can not be deleted that is ok because those are needed files, once
you click on ok in that pop up the process will stop, you can start it
again by clicking on the file second in the list and then by holding
down the shift key and scrolling to the end of the list click on the
last file, this will select all the files accept the first one that
stopped the process. Keep repeating these steps until the temp files
have been cleaned out accept the ones that need to stay.
7. Select the Start key to the run option. In the run window type in <
regedit > and enter. In the registry editor, you need to be very
careful and please follow these steps precisely.
a. Select the (+) next to the folder stating HKEY_CURRENT_USER
b. In this view select the (+) next to SOFTWARE, when you click on
this it will open your registry further.
c. In the SOFTWARE view you will see a series of folders, one will be
GARMIN. Highlight the word GARMIN and press the delete key. It will
ask for confirmation of deletion. Make sure that the word GARMIN is the
only key highlighted. Press on the (-) signs to contract the
expansion.
d. Repeat the same process for HKEY_LOCAL_MACHINE. It may not be in
this registry.
8. Shut down your system as normal and then let the system set for about
30 seconds and then start up your computer.
9. Before re-installing the software please disable or turn off any
security programs; i.e. Norton, McAfee, Spyware, and or Zone Alarm.
10. Reinstall the software. It will ask for the destination folder, if
the setting is the C:\Program Files and so forth, click on the browse
option and type in a different destination folder. C:\Garmin. This
folder will not exist, but the option to create it will follow. Select
OK.
11. Reboot after finishing your installation allowing the software to
rest in the destination folder.
12. After you reinstall, I recommend that you upgrade your operating
software to the latest version of the MapSource operating system, i.e.
update Mapsource or the nroute program to the latest version from our
web site, by going to updates and downloads, then click on mapping
programs, and click on the option needed.
MAPSOURCE:
http://www.garmin.com/support/download_details.jsp?id=209