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#11
That is odd,, but it is possible that it is something that is undetectable, or not generally malicious per se.
I would also unplug the mouse.
Personally,, at this point, I would back up all my data to an external drive.
Format any and all drives in the system. Install Windows from scratch, then see if the problem continues.
If it is still happening,, then you have a very strange hardware problem or, could be, maybe, just guessing, a BIOS virus? Who knows a this point. Maybe try flashing the BIOS.
After that, Call a Priest, exercise the f'er or burn it at the stake. Cause it ain't natural.
You know,, the other thing you could do, is open Word and let it go for a few days, maybe it's a message?