Safari missing images

A couple of weeks ago I started to have problems with Safari not loading images on websites i visit often (sonyalpharumors, wunderground).

It became quite frustrating so I would empty cache, clear history etc, & that seemed to work for 30 mins or so & then images started missing again.

Then it also started happening on my computer at work, also running 10.8.5 & Safari 6.

It happens several time a day & is strangely intermittant - EG: i can visit a site, several images are missing - refresh several times, still missing. Come back 5 mins later & refresh, the images load.

I started using chrome & the same images always load without a problem.

For an example: http://www.wunderground.com/hurricane/western-pacific/2013/Typhoon-Fitow

The large map & all the small icon maps are missing in safari 75% of the time.

Its happening on 2 seperate computers, which is really weird. What can I do?

SAFARI

CHROME