screen shows 2 copies of lines being read

[nitelife]

I recently downloaded the full screen version of microstudio,but now the screen shows two separate lines of the same thing playing simultaneously.these lines often overlap causing the whole thing to be unreadable.I have noticed this only occurs using certain brand names of discs ( most notably Nikkodo...SAVA & SAVP ) However these discs can still be copied fine,and the copies play correctly in my karaoke player.Is there an adjustment that can be made to correct this problem?