need help connecting my TV to my PC

i got HDMI cabel.
for some reason, the TV says that there is no signal.
after installing something, i needed to reboot me pc, and while the boot was loaded, there was a signal, and i could see the pic in the tv.
at that time my pc monitor turned of automaticly.
when windows was opend, the TV shows again that there's no signal, and the pc monitor turned on..
so its the settings..

i have windows vista x32, and my graphics card is GForce FX-8600 512MB.

I need your help..

are you using an adapter or direct hdmi from the card?

try disconnecting the monitor with the power off, then boot it up and see if it stays on the tv

phazed said:

are you using an adapter or direct hdmi from the card?

try disconnecting the monitor with the power off, then boot it up and see if it stays on the tv

Click to expand...

the bacle is connected to the card, no adaptors..
mm i tried what you told me, but it didn't work.