52PFL9632D via Geforce 9600 GT / HDMI --> no singal from time to time

[benkrebs]

Hi folks!
Although I read a thousand threads I could not find a suitable answear, so I ask myself ;-)

When I run the following config:

GEFORCE 9600 GT 1920x1080@60HZ --> HDMI --> Philips 52PFL9632D

I get a perfect picture. But from time to time (10-60 seconds) the picture is just black with the message "no signal". I ran it already with a 8600. Then The Picture was even more often black. With a PS3 everything works fine.
I use the latest NVIDEA driver and Windows Vista.

I bought a new HDMI cable. That did not help as well.

I am wondering why there is a picture most of the time and then it turn black for a second.

Hopefully you have any ideas, as I'd like to keep that TV ;-)

Thanks in advance,
Ben