I know this is an old post but I wanted to reply because I think there is some misinformation here. I've got SoundblasterX G6 too, connected with Line Out to JDS Atom Amp headphone amp and then to AKG K702 headphones. You've put that for surround gaming you use direct mode in 7.1 - if you do that there will be no HRTF effects applied at all, ie no 3D positional effects will be applied, instead it will just take the 7.1 channel audio of the game and downmix it directly to 2 channels without applying any positioning. The HRTF effects are linked to the "Surround" variable in the SBX software - which you can set from 0-100, and this is what directly controls the HRTF algorithm - if you have "Surround" turned off or if you're using the G6 in Direct Mode you will get no surround sound processing and you won't be getting any 3D sound positioning beyond just pure Stereo. I recommend a value of 67% for the "Surround" function in the SBX software as a starting point. In fact, if you have your G6 in Direct Mode then none of the SBX sound processing effects have any influence at all on what you hear - all sound processing in any form is completely bypassed by using Direct Mode....that's the point of it, it's supposed to be used for neutral unadulterated music listening. Like you I've noticed that there are some bugs associated with the "Direct Mode" and "Audio Effect Mode" in terms of what the lights are showing on the G6 and what the software is showing. Also, like you I found I could fix this by switching it once back and forth between the two modes to bring the mode lights on the G6 in line with what the software was displaying.