Hi Luiz,
I occasionally use SV in osx, and I have had no big problems so far, or at least no consistent bug - some crashes may have happened, when loading files that are too big for instance, or playing too much with the middle button of the mouse (which admittedly is a bit too sensitive at times...).
Maybe you could help by explaining more in details what you are trying to do?
Cheers,
jean-louis