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 ...

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 ...