none of the buttons work on my nad 545 cd player?

Sounds like a failure between the control microprocessor and the circuitboard carrying the front-panel buttons to me.
 
all the buttons seem to be working again now?! strange... i had a listening sesh so perhaps after prolonged use it does it, so will test again when i get a chance to have a good listen.
 
Strange, I have one myself how do you like it? Its my first decent cg player and I love it, its good fun!
 
ABM78:Strange, I have one myself how do you like it? Its my first decent cg player and I love it, its good fun! love it m8, sound still blows me away after months of owning it, one of the best purchases I've ever made, glad your enjoying yours.