How can I fix my Hotpoint Aquarius WF640?

We have just replaced the rubber seal on the door due to a rip in the top crease of the seal (the fitting of the seal apprears to be tight. But there is still a small leak at the bottom left hand corner of the washing machine. I have removed the top and felt all around the seal and any water pipes but they all appear to be dry. Where could this water be coming from?

Mother in need
October 2009