I'm also one of the lucky owners of a DX90 and am very impressed by its sound quality and the new jacks.
Mine seems to have a problem. The player's hardware buttons (actually only 'play' and 'back') give me some strange behavior.
'Back' doesn't go back one song but seems to randomly select one song from the same album. There also is a delay (maybe 3 secs).
'Play' sometimes doesn't pause the song for good. It just pauses for a ms and then continues to play.
The weirdest thing is, that I don't even have to press the play or back buttons, I just have to touch them without pressing and I get a reaction.
I'm a DX50 owner and it never behaved like that. Does anyone else have these problems as well? Seems like a hardware issue to me. :(
Edited by deho - 4/16/14 at 1:04pm