I've found an excellent article on cleaning notebook keyboards here:
which suggests using the following lubricant:
Super Lube Dry Film spray (critical - DO NOT SUBSTUTUTE !) K-Mart automotive.
Being in the UK, I don't have ready access to KMart and can't even find this lubricant in the states via Google. Does anybody know of a suitable substitute available in the UK?
I've found this (http://www.lawson-his.co.uk/scripts/...RSIL6140003500) which seems a good bet, but I don't want to make the keyboard worse by using something unsuitable.