problem solved

for the last day when i restart my computer i find THAT : dvb-dream starts automatically
how can i fix this problem guys ?

there is an options in some other programs which is support this features (3D & BlindScan) like prog-dvb

do you have a DVB-s card which supports blind scan?

yes my card supports BlindScan " Prof Revolution DVB-S2 7301 PCI "

I am hoping that if the next version of dvb-dream will supports 3d channels and BlindScan for the transponders that will be fantastic