hawke : <font color='#000000'>db,
DPL IIx is a new Dolby DSP that essentailly does what DPL II does, BUT does it in a way that is optimized for 7.1, not just 5.1. This is very cool for people who have 7.1 already set up in their home.
galindez,
Pure Direct mode is a mode that routes audio directly to your speakers, bypassing all DSP. Many receivers attempt to further reduce interference by dimming or turning off the display in this mode. What you are experiencing is perfectly normal and actually pretty cool.
You may also have found an error in the manual as the 1400 has no Zone 3 - the 2400 does, however. We'll look into this and report it to Yamaha.</font>