Have you tried posing this question to Dell, or searching their website?
Check this links...
'How to Disable Touchpad on Inspiron 1525? - DELL COMMUNITY'
(http://en.community.dell.com/forums/...en&cs=19&s=dhs)
'how to turn insprion 1720 touchpad off? - DELL COMMUNITY'
(http://en.community.dell.com/forums/...en&cs=19&s=dhs)


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merkat106

Mer Hathaway,
A+ Certified &
Former in-store Circuit City firedog PC tech