ok, problem seemed to be that I only updated the Kernel to 2.6.11-1.14 (FC3) (from 2.6.9)
I also needed to update..
all packages in system-environment base
(plus any dependancies for each)
Using a full update of installed system packages would do the trick. I only have access at present to a dial-up connection
so download is kept to the miminal for the time being!