i had a site with around 200-300 external link plus several hundreds internal on the main page. and my pr was 1 then i was told that i should remove them because google may think that my site is a linkfarm so i have put on the majority of them , the no follow tag and i was surprised that my pr became 0 what happened ??
what's ur URL? Only external and internal links don't decide the PR. Other factors also have impact on PR of a site. Your site may lack quality content or title, heading, meta keywords are not properly defined and placed. I think an extensive analysis of your site is required, on the basis of which we can find reasonable solutions.