I have had my 990 for a long time now too. Since August, 2008. I am getting very frustrated getting the Toslink inputs to allow 5.1 audio. Sometimes it works from my cable box and TV (apps). Sometimes from my Roku with an external HDMI to Toslink extractor. I think I just need a firmware update. I don't think I ever did that. Like Supertom above, I can't seem to download it. I can figure out a way to get it to an old computer to update the 990, but I should be able to download it from a website.