I cannot navigate from main page to other

Help
2009-05-27
2013-05-23
  • All the permissions were set as said in setup file, but still I could not load calendar as a whole. I could not load other pages from the main page. The first main is loading but when ever I click on any one of the links (date or week or log in or...... son on) on main page it results in this error "Not Found....... The requested URL was not found on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.". If you could please help me with these problems encountered i would be very grateful. 

    Thanks in advance
    Vasu