Sorry to disapoint you, but the codec pack is your problem, not Elecard. I am using it for more than 2 years and never had any problem. Playing in active movie is due to the conflict between the MPEG2 decoder from codec pack and elecard's one. Try to uninstall codec pack and install codecs independently. But in general uninstalling codec packs can create bigger problems.
http://forum.bsplayer.org/viewtopic.php?t=3042