Make sure you middle mouse button is actually set to "middle mouse button" in your mouse settings; mine wasn't.
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Make sure you middle mouse button is actually set to "middle mouse button" in your mouse settings; mine wasn't.
What was it set to? The lightswitch?
(and you thought you had strange poweroutages....:p)
It was set to page up function or something stupid like that. Don't ask me why, that's how it came.
Things like that you find either in the control panel (again) or in the software (if any) that came with your mouse.
This is basic windows stuff.
its set to it