Instead of 60, try using the refresh rate as the target FPS.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4096 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/jme/JmeApp.java

@@ -93,8 +93,8 @@ public class JmeApp
             // create an appropriate timer
             _timer = Timer.getTimer(_api);
 
-            // start with a target of 60 frames per second
-            setTargetFPS(60);
+            // start with the target FPS equal to the refresh rate
+            setTargetFPS(_display.getFrequency());
 
             // initialize our main camera controls and user input handling
             initInput();