Thanks for responding. I am Using Firefox 12.0; CCleaner 3.15: Windows XP. Being quite ignorant I just allowed the cleaner to clean up everything that came up as ticked, andd then being quite dumb I didn't do a backup before I did anything. I am just aware that I could access these pages the day of, or before I ran the cleaner and then not after. I'm sure I've run it before without issue, so just did it again - oops.