If your machine is leaking as soon as you start up you have a faulty inlet pipe within the cabinet area and only by takeing the lid off will you be able to determin where it is coming from.
Make sure the machine is unpluged from the mains befor removeing the lid.If the water is clean then it probably did not go into the dispencer and could be one of the short hoses from the inlet valves to the dispencer, these pipes some times come off if you have very high water pressure.
Casper.www.selfixuk.com, August 2006