As a total novice here is my solution. Lincoln Appliance is spot on, but we had trouble getting the bottom panel off. Finally found that there is a screw on either side which you can only access by tipping the dishwasher back at about a 45 degree angle to get to the screws which are right underneath. You can't see them as they are up a plastic shaft. Hope that makes sense for the next person that has our problem!
Sharon
October 2010