> I am running ProofPower on Ubuntu 10.04.
> I had a problem a while back (probably when I first upgraded
> to 10.04) with cut and paste, which didn't work whether done
> by keyboard or by menu.
> I never found out what it was, but eventually it went away,
> presumably as a result of something being upgraded.
> A couple of days it came back.
This is probably a bug in gnome that I reported long ago and seems to keep
coming back. Try:
sudo killall gnome-settings-daemon
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