Help with Audio

Ok so today I added 1 set of 5.1 channel Altec Lansing speakers (5 speakers 1 Sub(3 audio jacks)) and 2.1 channel Logitech speakers (2 speakers one sub(1 audio jack).

Using Realtek HD Audio Manager I played around with the jack settings and everything seemed to be in order. When I tested each speaker separately through the audio manager they all worked (made noise). After this I Opened up Itunes and only the 2.1 channel speakers will work. This is the same for Windows Media player and Myspace. In the audio manager they all still work.

Any help?

 

possibly upgrade your sound card>??
it could be that when the test it can run the low bit rate through all speakers, but when it comes to more than that, it might get confused
or just take out one set of speakers?!

 

Never!

Anyway worked it out had to use NEO.PC to enable all speakers for 8ch.

 

mhm cool