Confirmed: No more black screens.

In this post I was speaking about my problems of black screens in my SGI 1600SW TFT monitor with a nVidia Quadro NVS 285 graphics card. I did small test with a new Quadro FX 570 and seemed good but I didn't have enough time to do extensive tests. Now, with more than one week running in this configuration I can say that: The problem has gone!!! No problems in more than a week and a speed performance increased more than I was thinking!!!

You can see the differences between both cards: