it may be that they only had (as developers) approx. 3 mos. to learn snow leopard.  that's when the first betas were out IIRC.  we'll hope for the best.  I checked CS4 performance prefs, but all they've got is "limit RAM usage".  yer option now (poser) is to cut threads down, unless stefan or the other noel will give us the syntax of the "nice" cmd in re: decreasing poser priority.