Atonce
George,
I would first follow Don's advice and remove the ATonce and try your amiga
again. When you said you couldn't bring up a CLI or SHELL, were you trying
to do this from your harddrive partition? I seem to remember a couple of
months ago I had screwed up my startup sequence and booted from a disk and
when I tried using from my harddrive I had the same problem.
I have the ATonce and a Xetec drive also and have it working fine. Also,
describe exactly what hardware and software changes you made and maybe I
can talk you through this.
-Rick Graff