os x mountain lion problem displaying of fonts and overall screens

Hi. I’ve macbook air 11’’ and macbook air 13’’ (both are of 2010 y.)
After upgrade to os x mountain lion, the libreoffice look on the small macbook air became terrible.
It seems like font smoothing or screen resolution changed (of course smoothing option is ON as in OS as in libreoffice), thou it doesn’t happen on macbook air 13’’.

Now if i want to work more or less comfortably (thou menu fonts are impacted too) i should zoom page 150% and more.

Please, help

Looks like a dupe of: Blurry or fuzzy text Libre Writer