Hi allanco,
I received my new pvr card yesterday, mce 150 which I bought from scan. I also have the same horrible audio.
I thought it may have been the leads, but I've tested with multiple leads and no change.
I've gone thorugh everything, and I believe it's the hauppauge pvr150 mce card which is causing the distorted sound. I also tried downloading the latest drivers, and even the beta drivers from the hauppauge website but there is no change.
My setup is the same as yours, sky digibox -> scart -> 3 phonos -> pvr card -> [(a) sound card -> 3.5 jack -> 2 phono] [(b) graphics card -> 1 phono] -> TV.
I can change the channels on mine though - You have to make sure the ir blaster is in the right position though, if it's wrong it can send the wrong numbers.
I don't think the cabling you use are the problem, unfortunately it's the pvr card
For what it's worth - I also tried using the coax cable going into the pvr card, but it didn't find any signal. The coax cable was going from the sky box into the card. I also tried with an aerial on my roof. both methods work fine with my TV, but not with the pvr card, so I think it's defective.
Anybody else have these problems with cards bought from
www.scan.co.uk ?