Hauppauge HVR 900H - Black Screen if I don't start one time WinTV 6.0 (1 Viewer)

[MC_Almeria]

I have MP Working with a HVR-900H hybrid card.

When I start Windows, and then MediaPortal, in My TV I see BLACK ALL CHANNELS... but when I start one time WinTV and close it... I can use MediaPortal perfectly!!!

No error logs... so I think is a startup problem with HVR-900H via directx

My definition file is:

<capturecard commercialname="Hauppage HVR900H" capturename="WinTV HVR-900H BDA Capture" devid="vid_2040&amp;pid_6600">
<capabilities tv="true" radio="false" mpeg2="true" mce="false" sw="false" bda="true"></capabilities>
<tv>
<interface cat="capture" video="2" audio="3" mpeg2="1" sectionsandtables="5"></interface>
<filters>
<filter cat="networkprovider" name="Microsoft DVBT Network Provider" checkdevice="false"></filter>
<filter cat="tunerdevice" name="WinTV HVR-900H BDA Tuner" checkdevice="true"></filter>
<filter cat="capture" name="WinTV HVR-900H BDA Capture" checkdevice="true"></filter>
</filters>
<connections>
<connection sourcefilter="networkprovider" sourcepin="0" sinkfilter="tunerdevice" sinkpin="0"></connection>
<connection sourcefilter="tunerdevice" sourcepin="0" sinkfilter="capture" sinkpin="0"></connection>
</connections>
</tv>
</capturecard>