I cleared the configuration on my ASA 5510 with "write erase" and "reload". I then typed "config term", "no pager" and "end" to turn of "---More---". Then typed "show tech-support".
The screen started scrolling as if I had type "show ?" over and over. Cycled power to ASA. Ever since the ASA does not respond to key strokes. The one exception is when it prompts for ROMMON access, I can use Ctrl-Break, but no other keystrokes work after that.