Decided it was time to update Weather programe (from Weather to Weather 2 v1.1.0.3 ) but unfortunately once installed Weather 2 just causes MVP's to go really slow and then crash...

Done some investigating and have two observations
1) I don't have PVRX2 running (all access is via MVPs). Which means when MVP is switched on it forces Weather 2 data download which hangs - this does not happen if I open PVRX2

2) Recurring error - "FATAL UNHANDLED EXCEPTION:: System.IO.IOException: The process cannot access the file 'C:\Program Files\Devnz\GBPVR\Plugins\weather2\<unique directory name>\weather.xml' because it is being used by another process."

Also looks similar to this issue reported by steeb