This may already be covered in merlyn's reply... but IMHO: You should never explicitly refer to main::anything from with in a package (other than main). The same goes for all packages. ASAIK The point of making a packge it to hide data/functions/whatever form other packages. If you need to maniplate vailables in another package it should either have an accessor method, or export the variable into your namespace. That is just a "Best Practice"... again My Humble Oppinion.
They say that time changes things, but you actually have to change them yourself.
Andy Warhol