Thirteen entries for assigning a key combo to "printscreen", and none of them work!

This screenshot is from the Personal settings configure desktop tool, under Keyboard and mouse, Keyboard shortcuts, Khotkeys.

I've tried each one of the buggers and none of them will launch Ksnapshot when I press PRTSCR.

I know the key works because it reads the key when I assign it, and it also works perfectly under KDE3.

Thanks .

EDIT: Sorry no screenshot because the forum has lost it's "manage attachments button! _.