prevent progdvb changing forced gpu/mem clocks ?

#1
Hi,
as I´ve got a radeon hd5770 and there are some problems with gpu rates in idle and 2d mode (freeze, stripes...) i forced it to use continuously 850MHz GPU and 1200 MHz Mem by using ATI Overdrive in CCC.

This is fine in all programms I´ve tested yet, but progdvb.

When I start the programm clock rates change to 400 gpu / 900 mem.
I don´t know why this happens, neither how it´s possible with changed driver settings. Fact is that my card is more instable with these settings in progDVB than with default settings :(.

Thinking this could have something to do with my stick (Terratec Cinergy HTC USB XS HD) i testet terratec home cinema, but this works fine.

I´m using version 6.20.03 ´cause it worked well untill i changed my graphics card. As I don´t think a newer version will change anything and I´d like to save my settings I tried to find help here before installing a new one. If you think it could help please tell me :)

Does anyone know a possible soluton to this problem?
Would be great, cause I´d miss progdvb a lot if it won´t work for me anymore.

Ah and i use windows 7 64 bit if this matters..

unr8d

#3
thx for your answer
unfortunately is wasn´t able to deal with this issue the last two weeks.

did you understand my question correctly ?
i changed the driver settings of my 5770 to hold a rate of 850gpu/1200 mem and they do so in most programms.
only when i run progdvb rates change to 400/900 and i just don´t know what to do and how its possible for progdvb to ignore the forced rates :/