If anyone knows of or would be willing to make me an XXDP TAP image compatible with a 16K PDP 11/40 that I can convert into a CONSOLE script? I'd take a RAM dump after loading XXDP on say a 11/35 11/40, probably also 11/34, 11/05, 11/10. If I could run TU58 emulator I would...it's not working correctly, I have tried everything I can think of. I will keep working on this and I also still can't boot my RL11 (RT11 on RL02). Given my circumstances the next thing I imagine to attempt is the download of XXDP "manually" via a CONSOLE as if it were dumped from TU58 tape just before initialization. I do have BASIC running in core at the moment, at least there's that. Given at least that works my theory about my inability to boot RL11 or TU58 could be that that I have a DMA-related UNIBUS issue. I have not supplied every detail of my system analysis here in this message but that's what I think is the "core" of the issue. har har. Open to suggestions thanks. Bill