Dual Monitor setup didn't

I installed RH 7.1 (GNOME desktop) and tried to configure Xinerama
per the HOWTO. I get normal operation on the first monitor, but only
the low-res gray screen on the second. But the cursor will go to it
(as an "X", but buttons cause no effect). I'm attaching a .gz of my
XF86Config-4 and the /var/log file.

Did I miss a parameter?

Appreciations,
Gene