Does anyone have a checksum for the PDP-11/53 ROMs? I'm converting an M7554-SD. The ROMs from M7554-04, I think, are the ones I need. According to Jonathan Engdahl's page, they are 261E5.hex and 262E5.hex. I have a set of images already, and have one system running with them, but my EPROM-burner-guy is having trouble with 262E5.hex. I want to make sure I have a good image before I tell him to try harder. :) Thanks! Doc