>We will try with new batteries and perhaps.... It sounds to me like your batteries were low, which causes errors when flashing the calc. :) --Cliff Biffle Optimist: This glass is half full. Pessimist: This glass is half empty. Cynic: They drank my water. Figures. Engineer: The glass should be -half- this size! Psychoanalyst: The glass is affected by feelings of inadequacy.