Pam Moore wrote:

I've picked up some malware or something. It came when I opended
Dave's pictures about his visitor, and I thought I'd got rid of it
but up it popped again when I opened jmileman's picture.
The common denominator seems to be photobucket.
Please can anyone tell me how to search and destroy this thing.
When this happens I'm stumped.

I don't think you've *necessarily* picked up any malware, it might
simply be a pop-up that is loaded each time you visit photobucket.

Since photobucket doesn't charge most users, they force adverts onto
people viewing things on the "free" service.

If you're seeing the pop-up at any other time (not when you visit
photobucket) then might be worth running malwarebytes.