Does anyone know if the 2009 Mac mini can play back 1080p60 YouTube videos? I seem to have extremely mixed results and mostly it seems to alternate between pausing, skipping ahead, playing fine, and then skipping or pausing again with extremely variable cpu usage. I have 4gb of ram in that mini and plan to upgrade to 8gb soon. 1080p30 and below play fine. The videos in question are mostly on youtube