Can TV cards and cheap STB's be quite fickle when it comes to bad signal?
The reason i ask this is as follows.
I have 3 DVB-S devices connected to a splitter. From time to time my TV card gets really bad picture quality (lots of break ups etc). This is often resolved by re-screwing everything into the splitter. The thing is that nothing is every very loose, but still, this process seems to fix it.