Hey guys..i'm using Creative X-fi Xtreme gamer. My problem is i can't hear 5.1 surround in TR:L and TR:A.

I'm playing underworld now and it supports 5.1 surround..so no complain to that. Other games like call of duty, airborne,vegas, Broken sword :AOD all supports 5.1 and it works on my PC.

Any of you guys know how do i enable 5.1 in TR:L and TR:A?