Cats won't accept new dog and as a result we have .... CAT FIGHTS  

This happenned to a friend of mine. Her two cats started fighting each other although they were friends for years. Then my friend babysat one of her friends cats, and that's when the problems began. I'v also seen my two cats fight each other when they get riled up after seeing another cat outside. What my friend did to stop it was she separated the cats completely for a few days, and then watched them carefully as they had limited contact with each other. Eventually they went back to normal. I'm afraid you may have to separate them, and keep them locked all day. Keep the red one locked up one day, and the other two locked up another day. It's not fair to only lock the poor red one up all the time.

that is a big problem...
i think in first place before got the puppy you should have "tested" your cats when they are arround a dog... and see if they will can manage the idea of a dog around them!
i have a cat, too, and my mother in law got a dog and when they are together they are playing very nice... and now we think to take our own dog... but we thought of that after we saw how my cat reacts...
i think that is normal that those cats to behave how they are doing, they are feeling threatened for the dog... threaten about your love for them...
i don't know what you can do in this situation... try to ask a vet what you should do... maybe he will advise you and give you an idea...

Wow! I'm speechless on what to suggest to you, nageki. I've seen alot between dogs and cats but nothing like you mention. You may try talking to your vet about it or maybe he/she knows a behaviorist who could help you.

We got a puppy many years ago when we had 6 or 7 cats and I can't remember any problems similar to what you are having. (but it was a VERY long time ago and the puppy was seriously outnumbered) The thing is, cats are very territorial and in bringing in the dog, you've upset the delicate territorial ballence between them. I think that the problem is that they are all stressed by having to ajust to the new situation. I don't think that there's anything that you can do, just give them time to sort themselves out. Though if they don't. then segregation is the only thing to do.

I tink they need more time to accept the presence of the dog, maybe they're jalous of him, poor dog...
cats can be very wicked, they have their own temper, just like human beings, and it is possible they will never accept the do. It this case i can only suggest you to keep them separated.
maybe the black and the white cat sees the rdùed one as an enemy because he understand the red cat is a "dog-friend". But keep in mind that cats in general are very possessive: if the b/w cat has chosen your room as his home, he sees the other cat as an enemy who wants to steal him his property!
sorry for my english, but I am italian and new of the website!

hee.. hee.. i never seen a cat accepting a dog.... so this sounds new to me... but i have read in papers that cat (mom) taking care of a baby dog that is a puppy which is new born and lost his mom... the mother cat was taking care of the young dog... !!! sorry i cannot suggest you any solution in this case....

Wow, this is a very strange thing to happen indeed. I'm honestly not totally sure why this is happening. Maybe they attack the other cat because they see the cat being tolerant of the dog? or maybe they can smell the dog more on that one cat?

I'm sorry, I really don't know what to suggest other than to suggest that you might have to keep them apart for a while and then try to gradually reintroduce them to each other. the pecking order of cats is a strange thing.

I know what you mean.. I have two male cats who hate dogs.. And i had thought of maybe getting a small dog.. but those cats would kill him i think.. well ok maybe i am over exagerating.. But you know what i mean.. So i just don't even think of getting a dog.. if i did it would be maybe a toy chiwawah.. that i would have to carry.. the cats would probably think it was a mouse.. Ok well maybe not..