Index: Accel.c
===================================================================
diff -u -r569a9f44c93e6489f1dc1a62a7937e100ea344c2 -rcd8032ab289cafa3585fcb67dc9fbff5d8e18e70
--- Accel.c	(.../Accel.c)	(revision 569a9f44c93e6489f1dc1a62a7937e100ea344c2)
+++ Accel.c	(.../Accel.c)	(revision cd8032ab289cafa3585fcb67dc9fbff5d8e18e70)
@@ -475,8 +475,8 @@
 static void checkForShockError( void )
 {
     F32 maxX = FABS(getMaxAccelAxis( ACCEL_AXIS_X ));
-    F32 maxY = FABS(getMaxAccelAxis( ACCEL_AXIS_X ));
-    F32 maxZ = FABS(getMaxAccelAxis( ACCEL_AXIS_X ) - 1.0);  // when system level, expect Z axis to be at 1 g normally
+    F32 maxY = FABS(getMaxAccelAxis( ACCEL_AXIS_Y ));
+    F32 maxZ = FABS(getMaxAccelAxis( ACCEL_AXIS_Z ) - 1.0);  // when system level, expect Z axis to be at 1 g normally
     F32 maxAll = MAX(maxX, maxY);
 
     // determine largest acceleration