my virtualbox-bin can not add third vm

[waterloo2005]

my virtualbox have had two vm : xp and mint10.
but when I intend to install third , it can not start with iso file .
What is wrong with it ?
thanks

[img]http://bildr.no/thumb/809927.jpeg[/img]
_________________
i5-2450M, gnome, amd64
R,Mathematica,Emacs

[Aquous]

Please give the exact error message.

If there isn't any, try to describe the problem. Now you're just saying 'it doesn't work', which is not very helpful.

[waterloo2005]