Hello. I have sb0220. I've installed today kX 3538, before that i had 3537 and that was working fine on all outputs. Now (on 3538) second (rear) out dosen't works. I have swap 'front and rear' to off, on surrounder i have '5.1 mode' .. all settings are like on 3537, but here kX 6/7 aren't working. It works only on ASIO, when i set out to kX 8/9, then it plays on 8/9 (center/sub) and 6/7 - it's copying. I think it's bug in that nice drivers, i like 3538, cause it have something new useless things (like better ASIO setup) BTW card on new drivers is detected as 'c400' (in kX mixer), when i was using 3537 card was 'd800'. maybe something should be do with it :uhoh:.