This is an old bug (at least from 3.4), but unfortunately it is very hard to 
reproduce, and I cannot do it as well, it only happens by accident. Usually if 
you keep Konqueror or aKgregator running for a long time (days or so), after a 
while you *might* get such artifacts. Now for me it just happened after having 
akgregator running since yesterday (meantime there was a suspend to disk), but 
I didn't see in the past for months on this machine, but I saw on another. Both 
are running SUSE (10.0 and 10.2), and IIRC it only happened with the stock SUSE 
RPMS so *might* be some patch they are using is causing this problem. (?) I'm 
saying this as on my local machine I usually run a self compiled KDE and this 
might be the reason why it didn't happen for a long time. 
The bug disappears after a restart of the application and once it appears it 
appears for all pages from index.hu (and after the restart it works fine for 
all those pages again). Oh, and it happens in some late stage of the rendering, 
so until the page is fully loaded the text is readable, but gets broken at the 
end.
Anyway, if you don't have any idea why this bug appears, just close the report. 
 And where is the bug description? In the image as I cannot describe in 
words. ;-)