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Some times ago I had the 48-G memory expanded from 32 K RAM to 256 K. It worked well.

I have not used the calc for a while and removed the batteries. Now I want to use it again and get "Invalid card data" message, which is related to the RAM expansion.

There was an init-procedure to get rid of it, but unfortunately I cannot figure out how that worked. Can anybody help?

Thanks

Jan (Switzerland)

Hi Jan, There's a function PINIT which you will find in LEFT-SHIFT-LIBRARY then type NXT. Do this once and the memory expansion will be correctly recognised. Cheers from Switzerland Daniel

Excellent, it works without the Message again

Many thanks for your fast response

Jan