Mac or PC? what Browser and version.. If on Mac and the reload button doesn't do it then you may have to empty your cache... it's overloaded and can't take any more stuff... should be doing that once a month or so anyway. (same with a PC)
I've checked it with everything Mac there is.. Safari, Firefox, opera, taxiCab
PC - the techs from Simple Machines Forums checked everything.... back to IE 6 which anything older wont work anyway and is not recommended...