I have seen discussion about this subject in many places, but none of them has the answer that will finally make my game run. So I run a PC with a configuration like this: Core 2 Duo E7200, 2GB RAM, nVidia 9500GT, Vista Home Basic. Today, I installed The Sims 2 and a whole bunch of expansion packs, the last one being Bon Voyage. But when trying to run the game, I get this message: (i removed it from here, you can now find it in attachments, cause I don't have enough posting account) Now, I have the latest drivers, it is set running as an administrator and in XP SP2 compatibility mode. My DirectX is 10, as it is in Vista, and I have read that it can't be downgraded. No information about this issue is on The Sims 2 official page. I've also patched both my Sims 2 and Bon Voyage expansion pack. I'm really out of ideas, and I would appreciate if anyone could help.