When I press the mute button on winamp to hear the music on the website im hosting at
 

When I press the mute button on winamp to hear the music at the website im hosting at, it mutes my whole computers sound, I installed this before and i pressed mute and it didnt mute my whole computer but now it does. How do i fix this?

At a guess, switch to DirectSound Output instead of WaveOut (Prefs > Plugins > Output > select/hi-lite: DirectSound Output).

didnt work