ATI Radeon HD 4670 1GB GDDR3 agp 8x no picture

Hello all,

problem with the graphic card and my Matrox tripple head. with one monitor hooked up graphic card works really well, plug it into the trhtgo and i get the green lite telling me its sending a signal, but no picture on the screens or no signal. Ive reinstalled the drivers for card and trhtgo, nothing. I made sure that the monitors where set to 800x600 for starts, I even tryed to extend desk top and nothing, If i hook up the two ouputs of the card and extend desk top it works for just two monitors, not using the matrox. what am i missing?????
The weekend is here and id sure like to do some fly n

Hey thankyou all for any input

Props

Hey sorry i couldnt get back to you sooner.I will try that, Ive noticed that installed a system tool from matrox and it gave my ATI a wider resolution while its plugged into the thtg two of the three monitors will come on now. later i pulled it out and stuck the original nividia quad in and it fired up all three monitors like it was never removed ??????????

I will try what you suggest thanks for the heads up

Props

Hey for find out problem just unplug your monitor and check that the no signal(or raster) appear or not. if not then problem with your monitor and if appear then problem with your graphics card. so remove is and clean dust on it and then fix it. I hope it is working.