Problems with my soundcard

["Jeffrey D. Yuille" <jeffy5 optonline net>]

Dear Sirs, 

     I have installed Fedora Core 3/rc3 succesfully on both laptops (A Dell 
Inspiron 4000 and an IBM ThinkPad T-30) that I own.  However, when I 
attempted to install it on my Dell Dimension XPS T600R desktop, the 
installation went well except for one thing: the sound quality is terrible. 
You can hardly hear the sound at all and it is very muffled whenever you hear 
system sounds (when programs open and close, etc.)  I have the KDE desktop 
installed and I have an Ensoniq Sound Card which is using the es1371 module.  
I also used a different distribution of Linux on this same computer (Mandrake 
10.0) with no problems with the quality of sound.  Has anyone else had 
problems with this sound card?