You could system restore your system to a date which you did have sound in sims 2, just make sure you make a restore point for your system so if it does not work you can retsore back just incase things get funny with your OS after system restore. Happens but not to the point where the PC becomes unstable.
Sorry to hijack this thread but the OP and other will probaly be able to answer this as I don't know if it's a glitch or not.
I had a sim call up the greek house to become a member. When the Greek House sims came over they were running with thier hands in the air. Well generally running everywhere, never walking.
Is this normal?
Edit:-nevermind the glitch was the greek house sims were not wearing togas first time around.