diff --git a/GITADORA-Arena-Model.md b/GITADORA-Arena-Model.md
index f3b88f0..ee21916 100644
--- a/GITADORA-Arena-Model.md
+++ b/GITADORA-Arena-Model.md
@@ -37,7 +37,7 @@ Cabinet requires the following:
 * HDMI -> main gameplay monitor @ 4K (and it *must* be 4K otherwise things will not render properly)
 * DP port 0 -> LEFT monitor @ 1080p portrait
 * DP port 1 -> RIGHT monitor @ 1080p portrait
-* DP port 2 -> SMALL monitor (subscreen / touch screen) @ 800x1280 portrait
+* DP port 2 -> SMALL monitor (subscreen / touch screen) @ 800x1280 portrait (16:10 monitor, not 16:9!!!)
 
 The port number depends on your GPU so you'll need to experiment.