Ok.i've tryed just like you,and the results where just like yours.On my old pc O.S (*ind*ws *p x86) NSU allways freez at 15 min remaning,so changed my pc os ( 7 x64) here NSU does not work,not even install.....so i think i have to install xp on other partition only for this.....when i will do all i will post.I have to mention that now,in therminal,i can not install any app says "dpkg: 'ldconfig' not found on PATH.
dpkg: 1 expected program(s) not found in PATH.
NB: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin."