Old Panasonic TX P42G20 (2009) - which profile?

Hi,
I use Panasonic TC P42G20 plasma from 2009 + Panasonic Viera (2010) serviio profile.

Usually it works, but does not work correctly when it shoudl play .mkv + srt subtitles - the final picture is in different format. Should be 16:9 but it squeses it to 4:3... Any advice what to do differently?
Btw. some mkv are refused with "unsupported file format"...

thanks for help

KeXX

[zip]

What if you replcase this in the profile

  Code:

<Video targetContainer="mpegts" targetVCodec="mpeg2video" targetACodec="ac3">
            <Matches container="matroska" />            
         </Video>

with

  Code:

<Video targetContainer="mpegts" targetVCodec="mpeg2video" targetACodec="ac3" DAR="16:9">
            <Matches container="matroska" />            
         </Video>

Yes, it works much better now, thans!