I'm looking to jailbreak my AppleTV so that I can play mkv files through XBMC. For the past few months, I've been converting my mkv files to MP4 format with MKVTools to play on the ATV2 and it's getting annoying. I know there were problems with XMBC playing on ATV2 before but I wanted to know if those problems have been fixed. Can someone recommend an untethered jailbreak to use so that I can get XBMC on my ATV2? Thanks!! Also, are there any current problems with XBMC on ATV2?