Post originale di: oldturkey03 ,
Jessica gives this link a try I know that it is for a different camera but it's the same error.https://willj.net/2006/02/12/fixing-the-memory-card-error-on-the-canon-ixus-400s3/ and http://hubpages.com/hub/Canon_Powershot_Memory_Card_Error_Fix there is also a chance that your internal battery has gone "flat" :) It is a button type battery that sits between the AA batteries in the battery compartment. It looks like a little tab sticking out. This battery stores the date and time. Test that battery or replace it. It may solve the problem. Just my 2 cents and good luck...