nvidia quadro fx 3500 in Windows 7 Ultimate flickers

Thanks.  Tomorrow I will try all your suggestions (later this morning: it's 3:13 AM Los Angeles).
First, I have read that these cards do need a higher refresh rate.  But my monitor only allows for 60 hz at 1920 by 1080 (32 bit color).  I can make a "custom" setting, but what would you suggest?  Also does 32 bit vs 16 bit color matter?  At 16 bit I can get a higher hz.

Second, I had an ATI card in previously and did not have the scrolling lines.  I will put this card back in and attach both monitors to it and see if there is still a problem.

NOTE:  I can't swear to this, but I think I only get the falling lines on one monitor.  I will check that out (for bent pins) and will also switch the cables so that monitor on output one goes to output two, and monitor on output two goes to output one, and see if I can recreate the problem.

As to the Quadro FX 3500 flickering, I googled the internet and someone claimed that an older driver fixed the problem for him.  He said it would be trial and error to find which "older" driver worked, but that did the trick for him.  However, he didn't specifically mention having a problem with lines scrolling down the screen.  His was a "flickering" issue (I think).

So, I'd like to hear more about the Hz issue (what I can do -- 32 or 16 and custom settings).  I have two excellent viewsconic monitors that can handle 1080p 1920 by 1080 at 60 hz.

Second, I'll try to isolate the issue by swapping monitor cables, checking connections, and then report back to see if you believe the card might be the problem.

Thanks