The 2006 Omen has the following sound options:
English: DTS HD 5.1 Master Lossless Audio
Español: 5.1 Dolby Digital
Français: 5.1 Dolby Digital
Seems that you're not getting the DTS HD MA soundtrack
Try selecting the French or Spanish track as an experiment, you'll probably get sound from those with no problem (Turn volume down before switching from English with no sound, to the others!) (just in case

)
Double-check your Samsung's settings and firmware, you may need an upgrade (Fox BDs come with a note saying: "To ensure the best possible experience, your Blu-ray disc player may need a firmware or software upgrade"), and your receiver's settings too.
Do you get any sound from the Samsung analog outputs when playing the English DTS MA track?
Brian or another of our Samsung owners will have more tips and info.