First off, thanks for your reply.
I've always been very cautious with my online activity since like I guess most people I use it for purchasing items, dealing with my bank etc. I run 5 different virus/malware checkers usually daily so try to make sure my system is secure as possible.
Now you mentioned -
[quote]Some browsers, such as Firefox, also "prefetch" pages that it expects you to click, such as links containing "Next" to give the illusion of a capable rendering speed, but a cursory glance of the forums doesn't lend to many "Next" links that would point to the same location, so I'd rule out browser pre-fetching.[/quote]
I do use Firefox and have the plugin WOT (Web Of Trust) which could be relevant to your comment above. I've only noticed this on the forum here... I'm one of the Admin on TFD forum and never noticed anything like it hence my question about the CN forum.