Issue of X-plane 10 with Eyefinity

I have updated my X-plane 10 to the latest version 10.51 V2.  I used three Samsung 24" (1920 x 1200) LCD monitors for Eyefinity with Display driver 17.12.1, which was recommended for my MSI RX-480 4 GB video card (PC with Intel i7).  After setting up Eyefinity for 3 monitors, and after bezel adjustment, final resolution was 6048 x 1200.  There was no problem with X-plane at this resolution.  Here are my issues.  Using Cessna 172 as an example, the cockpit in 2-D view had both sides of the dashboard chopped off in the left and right monitors.  Is this normal for 2-D view of the cockpit under Eyefinity?  In 3-D view of the same cockpit not under Eyefinity, the dashboard spanned the entire width of the screen at maximum zooming out.  However, in 3-D view under Eyefinity, all I got was the same dashboard stretching across all three screens even at maximum zooming out. I tried different settings, including FOV.  Nothing hashelped.  What did i do wrong in the settings? I would like to attach pictures to show the issues, but i didn't know how.  Sorry!