Q: which codepage has polish windows used as default one; is it windows CP 1250?
A: yes
charset=windows-1250 for windows programs etc.
CentralEuropean script
(charset=iso-8859-2 suggested for html www standard)
Q :can this font be added into the system as a completelly new font (not a replacement of the existing one)?
A: Yes, but I can't create unique font (I dont know how

)
Modifying existing one is very very simple
Creating new one require knowledge and learning (I am not font maker professional)
I am just regular guy
Q: If this is all true we can try shipping this modified font somewhere around here for central european users if this applies to more than polish EPG. Would be reasonable to try on slovak or czech providers.
A: Yes It could be done, I can make polish font PART
But I puzzle that symbols from various countries (Czech, Slovak, Poland)
may overlap (appear) one each other (sorry for not perfect english)
I mean situation for example when Polish and Sloavak symbols are ine the same SYMBOL CELL ???
Up to now I've modified 3 various fonts (Tahoma, Arial Narrow and Book Antiqua)
I catch the rule controlling EPG appearance.
It works great with MyTheatre EPG.
But still dreaming about Polish OSD EPG..... (on PC)
I have DBox2 with Keywelt image and Polish locale (font)
and there's no such problem, everything's OK.
Maybe this way ?????
So there's Q's and A's and work to do.
Awaitng orders. Let's try it out. We will see.