I recently purchased a creative labs sound blaster audigy fx 5.1 from amazon. I am having multiple issues with it. After "upgrading" from my on board audio (asrock b85m pro4) I experienced no performance increase. I use ath m50 headphones. After gaming, listening to headphone tests, plugging in my Lav, handheld, and shotgun microphone I experienced very little to no performance increase. The only real difference I found was plugging in my atr 6550 to the sound card on mic in. Not only this, but I also started to receive a hissing noise every time I moved my mouse around. I couldn't solve it in my settings, so I decided to reboot and see if that did anything (turn it on and off right?). When I rebooted I got a BSOD. Is there anything I'm missing? I updated drivers. I uninstalled it and I'm seriously consider selling/ possibly returning it.