Thanks for the reply. So this is a mac ports problem. I'll do more digging on their forums then....

I don't see how. In one perl you installed some module, but didn't install it in another perl.

Do you see any quick way out?

install the module using the mac ports perl

Or I would have to change my .bash_profile everytime I use macports?

Usually you change $PATH once, permanently, and then you're finished