Hi,
thank you for your answer.
If the charset would be set incorrectly, print preview for smartform in polish language will be incorrect also, I think. Now i have situation in which ALL is displayed correctly, when correspondence language is set to polish for contractor (customer, I guess), and when correspodence language is english, only print preview is wrong.
So, changing charset wont change anything, but I will try setting some other.
Thanks again.