Hy,
I have also this Problem, and i think in this thread ist even this Problem:
viewtopic.php?t=4917
but i now a work around for that.
First I want to say, i have a LogiLink USB DVB-T stick with an EC168 Chip. Those Stick are available from many other firms with other labels.
If I start, before I start the ProgDVB, the original Software, or e.G. the Software BlazeDTV, and then I closed that Programs. Now I start ProgDVB, then I can use that Programm.
I think there is an initialising Problem with the EC168 Chip.
I hope there will be soon a fix for that Problem.
By
Torsten