Monitor error - not working

[yugub]

I have this problem.
when the computer is turned off the led of the screen is on... first its green for a sec and then its orange like it should be.
when I turn the computer on there is no light on the screen led.
so if I turn the computer back off the screen will turn on.
if the computer is on and I disconct the DVI cable from the computer the screen is working.
after an hour of restarting and rebooting the computer the screen is working again... So I ususlly just leave the computer on so I wont have to go fru all of this again.

http://www.youtube.com/watch?v=XXbFEJLwZEE

I tried to change the graphic card... I bought a new one... didnt helped.

thx in advance

[geek hoodlum]

It's normal No issues with that

[yugub]

Yeh thx...