Sound Problem with USB Headphone

Hello, I'm running 64 bit Fedora 16 (All up to date) and gstreamer backend. Now the problem is: I was having no issues with sound whatsoever. But few days back I plugged in an USB headphone. That thing got proper sound and all but now I can't hear anything with it plugged in. I tried changing the order of the sound card (Internal, Manhattan,USB Audio) & looked into ALSA Mixer. But I just can't hear anything. And is there anyway to playback via XINE rather than gstreamer? I'm running KDE here. -- Junayeed Ahnaf Nirjhor Core Developer Intern, Diaspora <http://joindiaspora.com> Twitter - @Nirjhor <http://twitter.com/nirjhor>