i am having trouble figuring out the digital formats on my 990. i have gone through the manual several times and i am sure it is in there somewhere, i just cant find the information i am looking for. i currently have a universal player hooked up via 5.1 analog and coax digital to my 990. i want to listen to soundtracks in pure DD5.1 or DTS WITHOUT applying PLIIx or NEO and i cant figure out how. also, when playing dts disks with DTS 96/24 it wont register on the 990. i know the player is outputting this signal since its 96/24 icon is on. what am i doing wrong? thanks in advance.