"Failed to initialize Creative ALchemy, falling back to dsound.dll" means you do not have valid license. Does it work fine with any other game or not? Maybe following post will help with your RX: http://forums.creative.com/showthread.php?t=741967&p=613093&viewfull=1#post613093 Splinter Cell series …

A bit off-topic, but I feel it's unnecessary for a new topic and this one seems to be the most active when I search for EAX related stuff. I'm having issues with my Audigy Rx and in this case specifically Splinter Cell Chaos Theory. I just can't get EAX to work in-game with ALchemy while I know …