My GPS is successful. I found the problem. Download was 488 KB. I erased the download. I downloaded it again but still 488 KB. So I did not erase it but try download again to replace it. Finally it reached 1.7 MB. Ofcourse, all storage was plenty. I think PK was mixed up. Anyway, it was true relate to the download problem. I am happy every thing is done. It shows the version 5.04. Great! Many thanks! Leslie--