What causes internal pages to have a page rank of 0 if the home page is PR 5?

[SEOBrent]

The home page PageRank is 5 but every single internal page is PR 0.

Things I know I need to address each page has 300 links (Menu problem).

Each article has 2-3 duplicates caused from the CMS working on this now.

Has anyone else had this problem before? What things should I look out for to fix this issue. All internal linking is follow there is no page rank sculpting happening on the pages.

[ResslerMotors]

Do you have a decent amount of links pointing at these internal pages currently?  If not, that would be the second step (after the menu problem).

[SEOBrent]

Yeah external links aren't the problem there is over 1 million external links pointing to the domain level.

[JamesNorquay]

Do you have a no follow tags placed on the internal link structure?

You can try and add a few footer links too to related pages and see if they pass PR.

[SEOBrent]

Hi James, No there are all do-follow tags. The pages themselves have several hundred links as well.

[kchandler]

What technology is being used for your navigation? If you are using javascript for dropdowns or links that will definitely effect your link juice flowing to internal pages.

[SEOBrent]

Hi Kyle,

The menu is straight HTML atm, so that is causing a problem with the links per page. 300-500 links on most pages. I am working on getting this recoded to work as an AJAX call to only load the parts of the menu the user wants to see.

Thanks for your help!