We changed our website recently and also changed the menus on it so some of our pages have a different path now. For about 2-3 weeks after the switch we noticed our Google Analytics fell off, then we checked mypagerank.net and out page ranks had gone from 3, 4, or 5 to 0 on some of the pages. Our web designer is being somewhat cryptic about why this happened. Can you explain what would cause this and if our page rank will go back up or do we need to do something?