send2chew@yahoo.com.sg

i wrote a score, and when playing the piece, some notes are not being played along the way. It is pretty random which notes gets missed out, In say just 60 bars of notes, I usually get at least 3 and more (and the same note on that scoresheet). . Any idea why? my PC is windows7pro OS 32-bit. I tested a couple of pieces, it seems all the pieces would have some. [edited, hopefully it is clearer now]