Hiya. I have just bought a Sony Bravia 55" LED/LCD (model KDL-55EX710) but cannot get my Macbook Pro to connect via HDMI or VGA (via DVI) (using the mac mini adaptors). The Macbook registers that there is a another display attached (the resolution changes) but nothing shows on the TV. With HDMI nothing at all seems to register.. Any thoughts? Mirroring etc did not seem to help... 