H264 channel locks up signal, no errors, but crashes

[Feyip]

I've been using DVB Dream, with Budget TT-3200, and it works fine with SD channels, but when I try to watch BBC HD I get a strong signal, no errors in the Codec page (Cyberlink v6, Core AVC v1.7, Video Mixing Renderer 9 and Directsound Device, though I also have tried using a Sound Blaster 2NX), but there's no picture or audio being decoded.
I've downloaded the hotfix you've mentioned before, and the K-Lite codec pack, but there's no graph being drawn.
I've reinstalled DVBD, moved the 3200 to another PCI slot and tried different drivers.

I've an Athlon dual core processor, Gainward Geforce 7800 GPU, and 2GB of RAM

Thanks