TBS 6921 is very unstable on windows 7 32. Legal Dvbviewer pro freez a picture when i shufle opera,aimp,aqq or when I run task manager.dvbviewer and dvbdream are crash on dvb-s2 hd channels. Afther that dvbviewer load 2 copy i task manager(one of them is possible kill but another not)Problem absolve...