No, nothing... a box in Firefix just comes up and says "www.google.co.uk cannot be found. Please check the name and try again". Looks like i have something nasty. Thanks for checking, Philtaz
I very much doubt it was reinstalling Firefox that cured it. I would say a DNS issue that was rectified whilst you were reinstalling it. If it happens again, try typing the IP address (66.102.9.147) of google instead of www.google.co.uk into the address bar. If it works, you have a DNS problem.