no problem with skynet but no signal in dvbderam or progdvb

hi
my dvb is ok in offline download with skynet or fishsat but in dvb players like dvbdream(last version and else) it has no signal.
I use last driver 1.0.5.1 with windows 7 and win xp
by changing windows the problem still exists.
by changing drivers the problem still exists.
by changing players the problem still exists.
my dvb is ok in offline download with skynet or fishsat but in dvb players like dvbdream(last version and else) it has no signal.
I use last driver 1.0.5.1 with windows 7 and win xp
by changing windows the problem still exists.
by changing drivers the problem still exists.
by changing players the problem still exists.