29-Oct-2012 13:49:58 ***BUGCHK KNIADR*** Monitor address does not match NIA20 address, Data: 0, 524000040000, 524000040000, 77502000 0000 Hmmm, Where'd I screw up? the MAC and configured DECnet addresses match. There are three places I'd check: 1) The actual network Interface on the Unix system (should be able to verify with ifconfig) 2) The address configured in klt20.ini (assuming you're using the Panda distribution) 3) The DECnet address specified in 7-1-CONFIG.CMD --Marc