Nero software problem

hi

im trying to use the nero sound trax to copy both lps tapes and 78s.every-
time i try to do this the nero sound traX stops working(the timer stops work-
ing)im recording from a turntable and a tape deck.from the turntable i have
it hooked up to my reviever.when i play the music into my line in i can here the music but thats when the sound trax stops(about 20 sec in)i see no error
signs and nothing indicating problems except it stops.can anybody help me?

                                      coonsanders