comments below image only showing on first instance (or after reload)

For some days now, comments below the post are only showing on the first instance (user submitted or most popular, alike), none after "right arrow" or clicking "next".

Have to reload each page to see them.

True for Firefox 22.0 + NoScript, AdBlockPlus as well as Safari 5.1.9 (also using AdBlock + NoScript), both on Mac OS X 10.6.8 and Mac OS X 10.7.x.

Newly installed GoogleChrome on 10.6.8 (with AdBlock and an Extension similar to NoScript) doesn't require reload ("normal" behaviour).

Suggestions?

Thx, tom

PS: Or should this resolve when being logged in?