I am having a problem as well with my game crashing. It happened once when I instructed my business owning sim to clean a messy counter on the business lot, when I told another sim to do the smustle with the DJ booth in a bar I built, and today when I tried to get my sim to interract with another sim in the Central Park Plaza. I looked at my error logs and all I see are audio errors. No object errors. It seems these crashes have something to do with directing my sims to do something (clean, dance or talk with another CAS sim). If anyone has any helpful hints, please share!!!
Oh, I thought it may have something to do with the size of my virtual memory paging file but I recently increased that to WAAAAY more than I am actually using so I don't think that would be the problem.