Apparently in my case it seems that PulseAudio might be the culprit. I checked all the packages (and version as well) between my configuration and another person which has a 480 GTX, Kubuntu 64 bit. I've used his settings for SC2, and the main difference between mine and his configuration is that he doesn't use PA. Is there a quick way to purge PA (and in case reinstall it without issues)? Thanks again, Cheers, Ps. I've tested my videocard with an OpenCL demo and boy if it's fast!
