hi..this is my first post on this forum hope someone can help ..have changed the screen to hd and now have blue ray and vigin hd+ ..as the amp is the older type cant use hdmi for audio..i have connected the amp to blue ray with 6, cables audio out to audio in ..screen on amp shows 6.1 ext in ..problem is cant change the surround settings ie dolby suuound or home thx etc ,it did work with my previous much older system..guy from virgin suggests use optical cable for audio on their box..was thinking of getting a denon poa-t10 to get 7.1 at a later stage .thanks to anyone with some help.