That's odd. Try resettings editor preferences. Press "Ctrl +Shift +Alt" as you press Edit in welcome screen . Do not leave the keys until you see a dialog asking you to delete editor preferences. Press "YES". If it does not fixes the problem then please see this link.
Thanks for the prompt reply, I will try this when I get home form work later as its my home pc that has the issue. I was trying to avoid a re install, as I want to upgrade to elements 11 shortly. But I will try the CNTRL Shift Alt option