MKV aspect in THP42X30M

When i play mkv movie in the tv by choosing the "panasonic viera" profile,
its strech the movie all around the screen, when iplay the same movie by choosing "generic dlna priofile" the aspect retio is good but i fet a message on screen "the audio profile is not supported".
i try to change the transcode to :

  Code:

<Transcoding>
<!-- remux MKV with audio not AC3 to AC3 -->
<Video targetContainer="mpegts" targetACodec="ac3">
<Matches container="matroska" vCodec="h264" aCodec="aac" />
<Matches container="matroska" vCodec="h264" aCodec="mp3" />
<Matches container="matroska" vCodec="h264" aCodec="mp2" />
<Matches container="matroska" vCodec="h264" aCodec="lpcm" />
<Matches container="matroska" vCodec="h264" aCodec="wmav2" />
<Matches container="matroska" vCodec="h264" aCodec="wmapro" />
<Matches container="matroska" vCodec="h264" aCodec="dca" />
</Video>


and also this one:

  Code:

<Transcoding>
<!-- remux MKV with audio not AC3 to AC3 -->
<Video targetContainer="mpegts" targetACodec="ac3">
<Matches container="matroska" vCodec="h264" />
</Video>


but not success
can any one help me solve this problem?
thank you!

[Illico]

Could you provide information about your mkv file (see signature link)?