hi i might have a solution to this problem, last year i tried SkyUK, it was freezing every 10 seconds as everyone above, this year i have upgraded my PC from Q6600 4gb 800MHZ ram and nVidia 560, to a amd pilediver 8350, 8gb 1866MHZ ram and amd 7970, tried again with SkyUK and no freezes... timings to the server are identical as last year, also my router/modem setup did not change, so i am guesing my old PC was unable to decode on time hence freezing issues, this is just a theory
might help someone out there