CR-V 1997 n/s front passenger door lock

Can anybody shed any light as to why i can`t open the n/s front passenger door from the inside, sometimes the rear one won`t open
either. Also the electric windows are very slow to close and seem to struggle, is it time for a new one?!!
Posted at author's request, using interface
Articles individually verified to usenet standards. Visit URL to contact
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.