<hesterloli@hotmail.com> wrote:

>>I'd say it is a Keyboard issue.

Bob wrote:

> That's what I thought but after disabling the INS keys, it still
> happens. It's caused by some special sequence of backspace and delete
> and other keys.

[snip]

There could still be something screwy with the keyboard. Try using
another one for a bit to rule out the keyboard.

Another think worth mentioning is the keyboard driver. Though most
keyboards will work without installing some specific driver, it's best
to check. I've also seen "generic" keyboards work strangely when
they've replaced something swankier that had a special driver installed.