One of the objectives here is to end up with an archive case on this problem that will be helpful to others. If we follow a fairly standard diagnostic process (without going overboard and ignoring major symptoms, the way manufacturers' process charts usually do) we will probably get the best archive outcome, and matts156 will probably get an orderly progression toward a solution - which may be useful for him in future situations.
Grumpy, well said mate, a good archive data base could be an invaluable resource in the future of this forum.
