"J. P. Gilliver (John)" wrote

|
| Has anyone else experienced this weird one? (Does anyone know what its
| cause is?)
|

What happened with checking for faulty hooks? You
ruled that out? If it really works as you say then it
would seem that would have to be a Windows problem.

But you also didn't mention what software you've
tested. If it's not the keyboard then it could be the
program. Any program you type into has access to the
Windows keyboard messages and its own GUI. So, for
instance, a program can do things like auto-capitalize
as you type. It would do that by checking the keycode
and shift status. It sounds like you haven't considered
the software used.

If it's not those things then there aren't many options
left. Maybe, possibly, a corrupted codepage? I don't know
if that is actually possible or how to check for it.

I'm still not convinced it's not some kind of hook,
possibly malware. That seems to be the only possibility
that fits with the fact that a reboot fixes the problem.
And didn't you say before that you were using at least
two specialty programs that hook the keyboard? I don't
remember you ever reporting any systematic test of
all those factors -- the specialty programs and the window
you're typing into -- to see whether the problem is
independent of all software.