Do you know for certain he did it inside Windows? sometimes the BIOS has options to disable USB.
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Do you know for certain he did it inside Windows? sometimes the BIOS has options to disable USB.
^^^ good shout ... simple usb linux boot to a gui and see what happens.
does the machine have a trackpad / trackpointer device ( like a laptop keyboard might have )
Some drivers for trackpoints have what i would call anti-lean adjustments built into them. I.e., if you begin gently leaning on the trackpoint constantly in the same direction, it thinks that its a error or unintended input, and so will counter adjust the movement so that the cursor remains still on the screen ... which when you stop leaning on the trackpoint will make the mouse cursor drift in opposite direction from the lean for a bit.
USB is not working how can he boot to linux?