I’m having it too.
I noticed something, I don’t have the problem on my alt accounts, but I do on chitown15. What do me, Nick, Ventero, and pere hace in common? We are all moderators. Non moderator accounts don’t have the problems (At least none of my alts. Which where on during the dino run challenge, so you can’t say they shouldn’t have cache issues).
P.S. Nick install ad blocker plus for firefox. ;)