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I have installed mp yesterday and am facing following problem:

If I try to autotune myTV, mp will cause my whole pc to crash. As I can choose programs manually this is only a minor annoyance. Still, when I run mp and try to switch channels in myTV, my system will crash again within 1 second or so  :? Any ideas how I can solve that problem?

I'm using a Medion 7134 TV Card with a Phillips 7134 chip (should work with mp according to the list on Mediaportal-homepage).