Hmm. FD just updated itself (and yes, added the adverts and moved everything about, pain!), but most of the thumbnails don't show site images anymore. They show the description and favicons, but just empty squares. (Yes I have refreshed etc)

Thanks for your description
What do you mean they show the description, are you referring to the title ?
Have you checked in Properties if the URL is still present.

Have you tried refreshing the whole page using the Firefox refresh page command in the toolbar when you are in Fast Dial ?

What happens if you create a new cell with URL, does the thumbnail appear ?

Have you tried uninstalling and re-installing Fast Dial ?

Please let us know how you get on.

Many thanks