I got my Sony 1080 receiver with my elac cinema 1 sat/sub about 10 days ago. All was working fine and everything sounded great until about 5-6 days of usage. After a few hours or so of watching a DVD or playing a game a buzzing sounds comes from all my speakers. I've tried almost everything including turning the subwoofer off, disconnecting cables, plugging the receiver in a different power socket but the only thing that will get rid of the buzzing is to turn the amp off. I've read other threads with people who had the same problems. Could this just be me being very unlucky and getting a faulty amp like they did or am i not doing something right? Sony 1080 users who've had no problems and ones that have had this problem please reply to this thread. I've already emailed HiFiBitz about this so i'm just waiting for a reply. I'm just not very lucky with two Videologic DTS theatre cinema systems going dodgy on me too. Any help would be much appreciated.