WMP was functioning fine some months ago, it's quite some time since I watched a video. Yesterday I went to an online local-tv streaming site and I hear the sound but the monitor remains black. I can't even watch regular dvd's on WMP, but that isn't a problem since I can use other programs. However this particular site works only with WMP. The only codec program I've ever used is K-lite Mega codec pack. It used to work fine before. I uninstalled K-lite and reinstalled it again, but no luck. What's the problem?