Also- the sensitivity knobs on the bottom ... do they need to be tweaked? or are they set by default to work?

The whole story: I am new to the nevo family so i did a quick program which only included the cable box - scientific atlanta HD 8300 - used things like guide chan up chan down etc ... as well as the yamaha receiver which plays the audio RX-2400 - the cable box commands worked but te yamaha did not vol up vol down and mute - no good - so i went and "learned" the yamaha commands to the nevo - and then bam - nothing works now -

So that raised my question - does the nevo connect need some sort of reset or re-configuration?

Thanks for any help- in advance ...