in terminal with admin rights:
PCBSD# cd /home/marcel/
PCBSD# mv /home/marcel/fonts.conf /home/marcel/.fonts.conf
PCBSD# ls -a /home/marcel
till here it should be all ok, but when i reboot/relogin, than it's the same look as every time. and the .fonts.conf exist but take no effect at all.
thank you guys till here. when anyone have an idea, ok. the next step is reinstall the system.
for more infos: i have installed qt engines but it take no effect of this topic or yes?