I'll try cleaning the switch. Thanks for the info.
Also, I just purchased a Haynes Manual for the Discovery on-line from Haynes UK for 14 pounds Sterling if anybody was looking for one. Haynes manuals for Land Rovers are not available from the US publisher. The manuals were very detailed for my 94 Volvo and 90 Jaguar and I'm hoping it's just as good for the Discovery.
Thanks,