I just got Sims 2 holiday expansion pack today. I inserted disk oneand after it asked me if I will accept changes to my computer and I replied yes it then asked me to insert disc 1. After that happened I read on here that I should insert the disc I normally play with at that point. I have several expansion packs and the disc I usually use is Sims2 pets so I inserted that disc. But it still wouldn't work I got a message then that said wrong disc inserted please insert correct disc. Can anyone help with this?