OK, I'm programming this little serially-controlled gadget, and talking to it direct-connect RS-232, through Hyperterminal. Ht is set up in asr-33 tty mode, bog simple. The box is spitting out plain ascii text.
There's a white box on the screen that shows my current conversation with El Gadget, and it all looks right. But the "backscroll buffer", the grey stuff above which shows older text, tends to be garbled, even though it rolled out of the white box correct. And there are snippets of really old text stirred in. Why?
And once I managed to aim a pointer at code instead of text (it would be impolite to ask) so my box actually shot out binary glop. So Ht printed junk on the screen, fair enough. But after that it also garbled local echo text! WTF?
Oh, wait, I figured out what's wrong:
(c) Microsoft
John