i have downloaded window cleaner pro to build up new database its saying serial number does not match for this machine which its obvously on there system for my laptop which has been stolen, window cleaner pro only communicate via email which i find frustrating anyone else know what i can do too activate it they keep emailing the same activation code but serial number keep popping up as wrong grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr