I was able to use my microphone without problems with integrated sound. However, recently I purchased a Sound Blaster Live! 24-bit card, and now my microphone will not work. In Surround Mixer, I have Microphone set as the recording device. "Do Not Monitor" is unchecked, as well as "Digital Output Only." I know this microphone works because I've used it on my friends' computers. I am positive this isn't a volume issue as it is set to 100% with "+20dB gain" checked. I'm sure I've missed something, but Creative's support section doesn't cover this issue.