🚀 go-pugleaf

In article <1992Nov2.041706.8278@news.tufts.edu> pmorvill@jade.tufts.edu (Paul Morville) writes:
>I've been having problems with my keyboard.  When I enter Turbo C or
>Wordperfect (dos), the arrow keys set it into Caps Lock mode, that is
>the letters become capitals.
...

What you have is the most common mainifestation of the "sticky shift
key" problem, which includes a variety of problems interpreting the
state of the SHIFT, CAPS LOCK, NUM LOCK, ALT, and CTRL keys.  There was
a lot of discussion about this on the net earlier this year.  Depending
on whom you talk to, the problem is caused by :

    (a) A bug in the BIOS INT09 handler,

    (b) A problem in a particular version of one vendor's keyboard
	controller firmware,

    (c) A problem in the interaction between HIMEM.SYS and the keyboard
   	controller involving control of the A20 gate,

    (d) Some of the above,

    (e) All of the above,

    (f) Other.

There is a set of solutions (and further explanations) which Rich
Williams (Hi, Rich, are you still out there?) uploaded to Simtel20 as
"int9fix3.zip", also available on wuarchive.wustl.edu under
/mirrors/msdos/keyboard.  Depending on your particular bios and/or
keyboard controller, these may or may not help you.

Another solution to try (and the only one that worked for me) is to
install the DOS international keyboard support.  To do this, include
the line:

	c:\dos\keyb us,,c:\dos\keyboard.sys

in your AUTOEXEC.BAT file.  KEYB replaces the BIOS INT09 handler with
its own routine.

Good luck!

Bob Nichols
AT&T Bell Laboratories
rnichols@ihlpm.ih.att.com