Appreciate your time, guys, and I promise to try my homework
Answers:
Jeppview never makes it now to the applications column: wow and jepp show as processes displaced slightly to the right with no PID and have to be manually 'killed'. No hidden screens. I do not have a 'switch to' function in TM. Tried the rename and had already done the re-install 'in foreign parts' routine.
I have tried editing win.ini to replicate the (working) W2000 version, as I have also noted the media file associations have gone squiffy too in XP. No result
Out of interest, on restart as I said Jeppview 'splash' appears with a message box saying 'readreg.exe' failed to initailise as the system is shutting down. Any clues there?
I have achieved the Jepp task I needed via W2000 (thank the Lord I have a dual boot!)