Cubase 6, how to get Ctrl V back to work again ?

Hi,
its wired, but Ctrl C and V have lost their functionality in Cubase 6. It works everywhere ekse. I checked google and found threads, but none with an answer that would fit.

Please share how enable Cubase 6 back for Ctrl C and V.

http://www.sevenstring.org/forum/recording-studio/192294-please-help-ctrl-c-ctrl-p-suddenly-not-working-cubase-5-a.html

http://www.kvraudio.com/forum/viewtopic.php?t=253219

Regards,
Frank