So, first problem had with the unit was the pSU, it changed and worked fine up until now. It starts to boot with the cystalio ii logo for a very long time, and then i get
the normal screen, Video signal etc. but that menu is totally frozen, and it did't detect the source either. Anyone have a clue?

lo, quick answer, my SECOND atx-psu didn't work anymore..worked for a month or os.. anyway, had a much bette noiseless psu and it works fine with it..phew.