On Monday 14 April 2008 08:07, Bob Armstrong wrote: Just saw it - after reading this ;-) I just checked uNotes through #115 and no mention of this problem w/RLV12 or ECOs. I checked my two spare RLV12/M8061 boards and there are no ECOs on either of them. I have another in a 11/83 - but it's too difficult to get to it to check (moving racks, etc.). The one in my 11/83 runs XXDP 2.5, RT, RSX and RSTS/E w/o any issues. I would be interesting to investigate what the "ECO" is on your RLV12. In your "spare time" how about tracing it out ;-) Interesting... Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"