Think I'll be giving this a miss for a bit. Thanks though to everyone for the heads up and iand46's help via PM's.
Wise move.
I can't launch my BaseCamp after having updated to 4.3.1 Reinstalled thrice but it still doesn't work.
Think I'll be giving this a miss for a bit. Thanks though to everyone for the heads up and iand46's help via PM's.
I ran the udate from the Apple App Store. I now get the following error message every time I start up Basecamp:
"An error has occurred loading your data
Your list data file is corrupted. Basecamp is loading a back, but some data may be lost"
- not the sort of message you want to see!
I am currently in discussion with Garmin Support to find out what is wrong and a fix. But they are currently clueless and have asked for a copy of my XML file

I am having no problems with 4.31 and am using it very heavily at the moment .
Fwiw, Basecamp stores it's data to a place unknown, but I ALWAYS export each routing file as a named gpx route to a data directory of my choice. That way you can file them away to somewhere like Dropbox, for archiving safely. Easy to export and just as easy to re import when needed.
Worth considering, but an element of "horse/stable door/bolted" now.
All my routes still seem to be there and visible (at first glance) but I need to identify the "list data file" that Basecamp thinks is corrupted so that I can restore it from my Time Machine Backup
Umm...Any pointers pls?
I can certainly restore the previous version 4.2.4 of Basecamp from my Time Machine backups. What i have not fathomed out yet is where the "list data file" that is corrupted lives, so that can be restored too. Any ideas? Because, restoring the v4.2.4 does not seem to be the real problem, it's the fact that the list data file and its backup are now corrupted.



This is the response that I have just had from Garmin Customer Support:
"Thank you for contacting Garmin Europe.
I do apologise for the ongoing issue and am happy to assist further.
Occasionally a file on the device itself (XML file) can cause issues with Garmin applications such as Basecamp. However, in this instance it is clear that the error is in fact with Basecamp itself.
Please could you completely uninstall Basecamp and then reinstall from the Garmin website.
To remove BaseCamp from the Mac:
Open Macintosh HD
Click the Applications folder
Click and drag Garmin BaseCamp.app to the Trash
Click the Go menu at the top of the Mac
Click Home
Click the Library folder1
Click the Preferences folder
Click and drag "com.garmin.BaseCamp.plist" to the Trash
Navigate back to the Library folder
Click the Application Support folder
Click the Garmin folder
Click and drag the BaseCamp folder to the Trash
Empty the Trash
Garmin BaseCamp should now be removed from the computer.
1Note: The Library folder is hidden in Mac OS 10.7 and newer. To access the Library folder:
Click the Go menu at the top of the Mac
Click Go to Folder
Enter Library
Click Go
Once this is complete, please reinstall from http://www8.garmin.com/support/download_details.jsp?id=4449
Not had chance to do it yet. But will report back with results when I do