Index: development/themes_common/Matrix.css
===================================================================
diff -u -r1243 -r1244
--- development/themes_common/Matrix.css	(.../Matrix.css)	(revision 1243)
+++ development/themes_common/Matrix.css	(.../Matrix.css)	(revision 1244)
@@ -54,4 +54,9 @@
 }
 .eConMatrixPropertiesHeaderLabel {
     display: block;
+}
+
+td.matrix.mandatory.mandatorynotfilled input,
+td.matrixproperties.mandatory.mandatorynotfilled input {
+    border: 1px solid #EF5959;
 }
\ No newline at end of file