Thankyou David
On that page was the answer
our keyboards were accenting letters instead of placing apostrophes
when I changed from "US Int" to "US" the problem disappeared
This is strange as this has never happened before in the many editions of mandrake / mandriva ( Mandrake 7, 9, 10, 2006,2007, 2008 ) that I've used and I have always specified US Int keyboard at installation and never had this issue.
This is good - one of the last hurdles before ditching windows completely.
Thanks again
floppy