Blasted Soundblaster! Need help asap

[R'as al Ghul]

Hi guys,

my Creative Soundblaster Audigy is acting strange. I'm wondering if I have accidently damaged it. Here's the situation:

• When I use small Speakers at the Headphone-out it's okay.
• When I use an Amp with large speakers at the Headphone-out it's okay.
• When I use a Headset at the Headphone-out it's not okay.

Not okay meaning I don't hear anything. (When I turn the volume up and down I hear noise) The other two ways work but I feel that the signal is weaker than before. And yes, the Headset is working fine with an MP3 player. It's not the headset.

This all happened after I tried to record vinyl LP's to my PC using this tutorial.
I did this before and had everything set up accordingly. What I might have done wrong, is to feed an audio signal into the headphone-out of the soundcard at one point. Can I do any damage this way?

Any other ideas what may be wrong? I tried to reboot, checked all hardware and software settings, etc.

R'as