HDMI-2 playing only "Straight"
 

I'm not too techie when it comes to my component connections - so am not really sure if this is an HDMI or receiver question... Please bear with me.

I have hooked up my Acer Revo 1600 (HDMI) to my 5.1 home theater via a Yamaha RX-V661 (2 HDMI inputs). My Samsung Blu-Ray is on HDMI-1, Acer on HDMI-2.

Blu-ray plays thru full 5.1.

Acer plays thru in "straight" mode -- which means only the standard 2 speakers.

I'm trying to figure out how to get 5.1 from the Acer.

Any help would be appreciated.

(Nevermind folks! I figured out all I had to do was press the Straight button on the receiver to toggle this on/off! Duh!)