Question : Problem: power save/reboot for no reason

Hi, I asked a question a couple of days ago and it was answered (http://www.experts-exchange.com/Hardware/Desktops/Q_22790930.html) ...and I thought i had cured my re-booting/power saving problem.  Anyway, i haven't...in one of the solutions the expert mentioned that ""Power Saving Mode" is a monitor message that means video signal was lost."
So this eveing I download a video card stability test software.  And three times i try to run it, and three times the PC switches to "power save mode"  So I am thinking it is more than my screen cables...

Using Belarc, this is the information it gave me:
Radeon X1950 CrossFire Edition [Display adapter]
Radeon X1950 CrossFire Edition Secondary [Display adapter]
Radeon X1950 Series [Display adapter]
Radeon X1950 Series Secondary [Display adapter]
LGE M1917A [Monitor] (19.1"vis, February 2006) (2x)

what is the next best step?...I presume it is not to rip out the video card and replace it.!!! :)

Answer : Problem: power save/reboot for no reason

>> So this eveing I download a video card stability test software
So that is the software to test for the Video card whether in good conditions ??