It's always something, I guess. Got the new 2gig G5 and decided to get 2 Samsung SyncMaster 172n monitors to go with it. Not the best monitors, but good enough. The problem I have is that one montior goes into sleep mode when the machine goes into sleep mode, but the other one does not...instead the monitor gives me a error message to check the cables. Also, at times it seems like the machine is not sleeping when it should be. The Samsung PDF manual sucks. But I think it might be a Apple thing anyway. Can anyone help me out? Thanks.