>Bruce and Dale,
>
>Thanks for your thoughts.
>
>It was not just RoboHelp and Word, Bruce, though those were the most annoying. In fact it happened intermittemtly on CTRL+c when, for instance, copy a name in the "Save as" dialog.
>
>In any case it appears that the problem has been solved - by replacement of the keyboard. I have been using it most od today and have not hit the problem yet. The "trial period" is the reason for the tardiness of this reply.

Good! The problem did appear to be possibly the keyboard, from what you said, but I was still skeptical, as I have almost never (and I think that's even a solid "never") seen a keyboard go south, except from users spilling hot coffee or juice on them, or similar.

But then again, all it takes is a loose or bent pin or pinhole in the input cable/port connection of peripheral devices to cause odd problems, without completely going south sometimes. That much, I do know, and could be the cause here. I have seen similar strangeness with mouse or printer connection port/pin problems. (But one may need almost a microscope to see a subtle problem like this.)

Normally, you can toss a keyboard across the room into a wall, and it will still function fine, so they're usually very robust, except for the connection areas (in my experience, that is).

Anyway, you appear to have made a rare accomplishment by coming up with a bad keyboard, so congrats! (just kidding - I'm glad you solved it.)