PROBLEMS WITH MY VP-1030C

[Damian]

Hi everybody,
I bought a VP-1030C in Ebay. I installed the sat card (into slot PCI) and drivers and softwares included in CD's (V.2.41)...
But this card doesn't work well because the problem is:
WHEN I TURN FROM A TV CHANNEL TO ANOTHER TV CHANNEL THE SOUND DISAPPEAR AND I CAN'T LISTEN ANYTHING FROM TV'S CHANNEL...BUT IF I MADE THE SAME THING WITH RADIO CHANNELS THE SOUND DO NOT DISAPPEAR AS TV. :shock:
So I try to update software to v.2.42a AND V.2.421 but when I turn on tv I can watch only a FIXED image of the channel's program WITHOUT SOUND and I cannot listen radio... :?: :shock:

I TRY TO USE PROGDVB AND THIS CARD WORKS WELL...

I cannot understand what is the problem...(I HAVE NO FIREWALL AND I DISABLED NORTON ANTIVIRUS 2004) PLEASE HELP ME! :!:

MY PC CONFIGURATION IS:
Mother Board: MSI MS-6380 ATX Mainboard (Vers. 3.0)
CPU: AMD Athlon XP 2000+ (1.67 Ghz)
Ram: 256 mb Pc2100 Cas 2.5
VGA: Hercules 3D Prophet All-in-Wonder Radeon 8500DV (64 mb DDR)
Sound Card: Philips PSC 706 Acoustic Edge
OS: Windows XP Professional SP1
Direct X: 9.0

Thanks again,
I'm waiting for your answer.

Damian

PS.: I update drivers of my vga card and of my sound card..