Yamaha BD-A1020

Hi to all. I have just bought bd-a1020. FLAC playing quality is really bad, it seams that player does not play FLAC at correct bitrate (info screen shows 128kbps-570kbs instead of 1000kbps-4000kbps). Because of that high tones are to grainy and disperse. Same thing happens from every source (DNLA server, USB stick). Is this unit just supports FLAC or it should play at correct quality? Please, can someone of owners can test this issue? Thanks in advance.

Just noticed that FLAC bit rate is not shown correct, player shows bit rate of previous played material (e.g. after played CD it shows 1411kbps, after played mp3 192kbps it shows 192kbps).