There is a acknowledged software error in MonacoPROFILER v4.6 and MonacoPROOF v3.7.  Scenario is that customer has interfaced the DPT41 using a USB interface cable and has selected "custom page size".  Software will read the first strip then immediately shut down.  No error message is displayed. Workaround is to use the serial interface cable rather than USB.  A fix will follow in MonacoPROFILER v4.7.  No fix is projected for PROOF.