what kind of problem do you have? i mean "does not work" is a real wide range =P
i've got lagging issues,
hardware, i5 3570, asus p8z77, 16 gigs ram, win 8 enterprise 64bit, system on ssd, movies on normal disk.. with w7 it worked..
modified buffer settings, played with some checkbox settings, as mentioned above with java to, disabled firewall, AV, still same issue..