Thanks! I started reading some of the previous threads people had written about having the same problems, and definitely got some good ideas. I bought the Science Diet for Sensitive Systems last night...is this the right food? I'm also trying Nutro as well- just introduced that to him last night. Our other cat, Ollie, seemed to like it as well, which is wonderful. Ollie is a picky eater when it comes to dry food so finding something the both of them likes (or that Ollie likes and doesn't make Stewie sick) can be tough. I also wish we had an explanation for why he's going downstairs instead of in the litter box...

It's just nice to know that there are others out there who have gone through this problem...and Stewie is a wonderful cat otherwise! He's a sweetie and even "talks" to us. Makes us laugh every time.