HDMI with GeForce 8600 GT 512Mo

[esteban25_03]

Hello,

I will make short.
Jais a problem with my Graphics card GeForce 8600 GT 512MB I can not make a work the HDMI when I plug the jack jet black screen after the apple and I know require a reboot but it works with DVI.
But I was always unplug HDMI pond to go on the Mac so I would like to know how I could do to get this entry and let me know how I can update 10.7.3 Lion I'm 10.7.2

Thank you.