No sync of Genius mixes since 12.3

Same problem here. Really annoying and bad...

Genius mixes are working in itunes, but they just dont show up on a list where you can select songs/artist/playlist for sync. I tried reinstalling win and itunes with no success. Then after win reinstall i found out that the itunes created .plist or somthing like that, file in my music folder, on different hdd , where i keep my music.

Its possible, that if i removed that little, hidden itunes file before i first imported music in fresh itunes, genius might work - list would show mixes.

Still nothing new, but i wrote to apple for help minutes ago. I got new hardware for my pc and i reinstalled windows and i still cant sync genius mixes. I have them in latest itunes...