I've had this sound card installed and working fine for a month now. Yesterday I replaced my 4870 w/a 5870 (graphics card). After installing an ATI catalyst package, some GPU overclocking utilities (msi afterburner/ati tray tools), and windows updates (all yesterday), today I am noticing that my surround speakers on my 5.1 speaker set are swapped with my center/sub speakers. Physically switching the cables in back seems to band-aid fix it fine, but what could have caused this, and could i be doing any harm by keeping it setup like this? Oh yeah, most importantly, how could I fix this?