My particular version of XP (MCE) has this annoying problem whereby the system beeps and ignores my first keystroke EVERY time after I use the mouse or haven't typed in a while. It's annoying as hell and I haven't been able to find anyone else who has it or would have any idea how to turn this off. I'm not running any of the accessibility options, and I've even reinstalled the system twice trying to fix it.
That's weird. Silly question maybe but have you eliminated the mouse and keyboard from the equation (by substitution)? Not that I can see the reason for these symptoms. Any errors showing in Device Manager?
Could be buggy keyboard and/or mouse software if you are using any.
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