I've been here and followed all the instructions with the only exception that MikTex is installed only for one user and not for every user. At the end of everything Lyx works perfectly but when I compile tells me that "culmus.sty" cannot be found.
I therefore tried to reinstall Miktex for every users but it seems that it cannot install for every users (not sure why: the wizard setup gives a strange output with all possible options one can give to the wizard setups and then exits form the installation)
Does anybody know if I can solve this problem copying the culmus.sty in some directory?