I have a Sharp SPC 991. I took the first one back to Sam's Club. It wouldn't work at all. They were pleased to give me a replacement yesterday. Today I tried to set the time, etc. There are two issues. (1) The Date 16 and Wednesday are locked together. I cannot get it to show Date 16 and Monday, also, (2) When I put in the batteries it keeps on running and will not stop going around. I take out the batteries and try again and it still does it. Help!