Unable to download/insall the Zone

Saw message that there was a new version available. Checked and my installed version was older. Downloaded the new version, clicked to run, opened and advisedd that it would remove the old version, agreed, old version removed, program terminated

Rebooted, clicked to run new version, said it needed to uninstall old version, agreed, went through the motions, after removal complete program terminated.

This same sequence has ocurred each time I've tried to install the new version.

Suggestions?

Thanks