Text on reports displayed with artifacts!

Hello
I hope that someone can help me with this issue.

So far I have added a correct font that is capable to display Latvian characters in ADK as well as in Birt reports ( “Open Sans” everywhere in xml file).

Below you can see how it is begin displayed. This screenshot is from top part of sales report.

Latvian%20text%20not%20displayed%20righr

Is there any other place to update font config?

Thanks!