On Sun, 25 May 2014, Johnny Billquist wrote: 17:09:44 24-MAY-14 ; TKB @RSXBLD I don't recall it getting to this stage before! Cool. So how many things did you have to fix in the end, and how/where did you fix them? I defined 3 undefined symbols in SGNPREFIX.CMD However...now its failing in legitimately random ways in SIMH. No failure is consistent. :( Johnny -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects