IthinkthatthisisgoingtobemoreofaWindowsissuethanwithDataProtector, specifically, withUserAccountControl. Iwouldrecommendthatyoutryyour 'push' installationorClientImportagain, andchecktheApplicationsEventlogonboththeclientandontheCellmanagertoseeifthereareanyerrorsreported, anddoa 'google' searchfortheErrornumber, ifoneisfound
YoumayjustwanttoturnoffUserAccountControltemporarilyontheclienttoseeifthathelps