HDMI problems via Sony LCD

[pants23]

Hi all,

I have just built myself a new HTPC using windows 7 and based on a ASUS M4A78-VM mobo. I installed windows using a normal monitor via VGA and everything was fine however when I moved the HTPC to my TV a Sony KDL-40V4000 and tried to connect via HDMI the BIOS screen came up, then Windows starting screen, then nothing the TV lost the signal.

Am I missing some simple settings somewhere?

Thxs

 

[pants23]

ok got a picture in Windows Safe mode but not in full boot? :sarc:

I'm pulling my hair out!!!