Vista x64 and services

I am running Vista home premium x64 and comodo backup I have tried starting the program with “run as administrator” and in various compatibility modes, but the program doesn’t think that I have the privileges to run services. The “Backup Type” is always greyed out, and checking for an update gives a message about needing to be an administrator. I have also tried enabling the administrator account and logging in as the administrator, but I get the same result. Has anyone else tried the program with Vista x64? Any suggestions?