QtWebKit 5 font rendering problem

[cr.zoidberg]

Hi there!

I'm using qtWebKit in my qt application as a UI.
But, when i open source html in chrom browser it looks much better than it looks when a oppen this page in my qtWebKit renderer:

Chrom rendered screenshot:
http://oi60.tinypic.com/10417yb.jpg

QtWebKit rendered screenshot:
http://oi58.tinypic.com/k357o9.jpg

Use Qt5.3.0, prebuild for msvc2013_64 downloaded from qt website.

Where i'm wrong ?