After some trouble with my S60 with auto-restart and missing GPS-routes, I saw the 7.31 beta.
First I made a clean-up like Chris mentioned, then a restart and the a factory-reset.
After that I checked, that GPS-recording is working and it does!
Then I installed 7.31 beta like described and now after some round playing golf I can say, my S60 is working ok!
All what should work is working, all messages are coming and scorecards and GPS-tracking is ok.
The only point I miss, is a description how to use the add-shot-function ...