Preview error

[xxxzanka]

Using autogk preview ,I have a new (one month ago everything was fine) error.

It says:
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Avisynth open failure:
DirectShowSource: could not open as video or audio
Video Returned:
DirectShowSource: “Renderfile, the filter graph manager won't talk to me”
------------------

I know is not an autogk error, but something related to the directshow filter, but I am not able to solve the situation.
Nothing found on internet.
Please help me.

PS The file I was converting to xvid is a simple mpeg2 captured from DVB-T.

[alfixdvd]

If you have ffdshow installed, the problem is related with it's configuration.

Go to ffdshow video decoder configuration, at left panel select codecs, locate Xvid at right panel, click right button mouse and select Set all supported formats to Xvid.

Now all works, Media Player Classic, Windows Media Player, etc.