No picture just sound on LiveTV

[Haddock]

Before today, LiveTV was working perfectly, but now, LiveTV shows a black screen. However, I can still hear the tv sound.
I've tried to uninstall GBPVR, delete the whole installation directory, upgrade to the lastest version, but I still have the problem.
My tv card is an ATI 550 Pro.

Any idea ?

[sub]

What version are you running?

Zip and attach you gbpvr.exe-native.log and I'll take a look.

Its most likely because you've installed or removed some application that has fiddled with you machine's Directshow filters.

[Haddock]

Ok, I got the solution : I have changed Video Decoder setting in the Software MPEG-2 Playback option group.
On my system, there are 3 possibilities : System Default, CyberLink Video/SP Decoder (ATI 550 decoder) and Nero Video Decoder.
It appears that System Default was set to Nero Video Decoder, which is the faulty one. I changed the setting to Cyberlink decoder, and now it is ok.