when I watch free channel everything work OK,but when I watch scrambled channel problem getting started.I watch 1-2 min program and than program blocking or program play in the mince(segments) and sound is off,when I clik om the program agen everything work fine 1-2min and problem start again.

What DVB device?

DVB device is SS2 TechniSat DVB-PC TV Star PCI (BDA)

You can try WDM driver also.

Where I can found WDM driver ?

I use Technisat Drivers 4.4.3 drivers.
I try Technisat Drivers 4.5 but not work,it is also BDA drivers.

4.5.1 is last.

Now with drivers 4.5.1 work OK,
but I forget my 2nd problem,dont have it on DVB Viewer or other DVB player.
when start ProgDVB I can watch some group of channel whose I watch last time,but when I want to watch other group of chanel I must clik on it and close ProgDVB.Then start program again and I can watch that channel, but cant watch ather group.