central locking... help please
 

Hi. My drivers door will not open. When I activate the central locking system all the other doors open except the drivers door. I can't even open the lock manually. When I operate the handle from the inside it just does not engage the mechanism. When I try to force the door lock up it will not budge. I cant open the drivers door so I can't take off the inside panel to see what the problem is.
Can anyone shed some light on how to tackle this problem? I am tired of climbing over the passengers seat to get behind the wheel.
Thanks Joe.;)