Strange behaviour over USB adaptor

If I connect any PS/2 keyboard to my notebook over a USB adaptor the
cursor keys do act normally, but they also cause as if the Print Screen
key was pressed. (So i habe a screenshot everytime I navigate with
them)...

How can this be?

Thank you,
Jens

Hello,

 > If I connect any PS/2 keyboard to my notebook over a USB adaptor the
 > cursor keys do act normally, but they also cause as if the Print
Screen
 > key was pressed. (So i habe a screenshot everytime I navigate with
 > them)...

Another hint: it does only happen if numlock is on!

 > How can this be?
 >
 > Thank you,
 > Jens
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