gnome going crazy

[david aubril <david.aubril%ac-nantes.fr@localhost>]

 Hi everyone.
 I recently built gnome ( netbsd 3.0, gnome 2.12 form pkgsrc
2005Q4, built with xorg ). I'm pretty happy with that. But there's
something really weird happening: when I am logged in, gnome sometimes
goes crazy: it says ok to everything I do, as if I was pressing the
"enter" button all the time ( it does it in the shell, for the graphical
applications, etc. ).
 I've seen a post about that on a bsd forum but no answer.
 Does anybody have an idea ?
 Best regards.