Recently I've began getting irritating pop-ups when browsing in general (for example I just got a poker related one just now and all I'm browsing is Macrumors). Now these are obviously being done by something in Safari, so assuming that there's something dodgy somewhere, whereabouts would this little bugger be hiding? Is there a folder somewhere where something like this could be hiding? If not, is there any way to return Safari to a pristine state of some sort? Cheers in advance.