I've been experiencing a strange problem with Sky digital for quite a while now whereby the reception and picture/sound is perfect 99% of the time but whenever the broadcast picture is mostly bright white (such as with the advert breaks on E4 and E4+1 or the Homebase advert running currently) it causes the picture and sound to break-up and stutter. I mainly watch E4, Living, and Sky1 and have noticed this on all of these channels. Has anyone else experienced this or is it just my sky box that has a problem? I'm wondering if the bright white picture is just too much for the decoder to handle and causes signal clipping or something??? Maybe there is a signal amplitude setting that can be tweaked to correct this??? Or am I just talking crap?