I see its not just me having troubles, tried progdvb since the summer, and yesterday I decided to buy it. Unfortunately nothing has changed

so my Problems are:
1. sometimes 10 min or 3 hours i can watch with any problems, then the sound disappears and recent picture every 10 frame. Then i flick on the same channel again, it switches back and watch until you have the same. (valid only for blocked channels ). If at the time I recorded, the program stops, the record would be good
2.HDTV channels. When I switch on HD from my sound system emits a very unpleasant sounds) high sssss ... (But then its recorded, again everything is ok

3.I read in forum, That lot of here has the same trouble when viewing any channel whether it be encoded or HD, or simple, every 2 min the view and sound is jumping and if you recording the record wount be nice
I'm using:
Win Vista SP1
CPU Q9550
4GB of RAM DDR3
GF 9600GT
SS hd2
MS MPEG2 Codecs
Elecard
CyberLink
CORE AVC Pro
K-Lite
Thanx