Do you have a spare card to try? did it ever work
with this card or is the card new?
Have you installed the last update from about 5 years ago? Version 5.16 from memory.
If not then you need a high quality card with a maximum size of 128mb to test it. Cheap
cards don't always work
, so a spare scandisk or similar quality manufacturer is needed to install v5.16. This update then allows larger cards to be used.
They are getting on a bit now and I wonder how long mine is going to go on for. Still selling for good money
in the UK though.