When I hook up my BlueRay player to my new surround sound amp via HDMI, the option to output any interlaced video is now greyed out as an option in the SetUp menu of the BlueRay player. Has anyone encountered this before? The issue is my TV's max resolution is 1080i.

TV: Sony. Max resolution = 1080i
BlueRay Player: Magnavox NB500MS9
Amp: Onyko HT-S9100THX