1) I discovered that the soundcards I have are not actually SoundBlaster 16 cards, but SoundBlaster 8 cards. I think this is why they behave so poorly. Do you know of any cheap places to get a true SoundBlaster 16 card? 2) My scientific calculator died (after 12 years of ownership). I tried replacing the battery, but to no avail. a) Any recommendations on where to get a replacement? b) Do you want the old one?