I have just added an HDMI swith to my setup. It links my PC, PS3 and Sony home cinema system into one output to my TV. When I change the HDMI source to my home cinema, the PS3 will automatically turn on! When I switch back to PC or power off my home cinema, the PS3 turns off. Anyone know of any way to stop the PS3 from turning on when I change my HDMI source? Thanks in advance!