Hmmm, I just re-read your last post...don't remember if ours had runny poo, but with ILT they don't necessarily show any symptoms much at all..the most common one is the sneezing, coughing. There'r so many things that it could be, too that have similar symptoms....but it would probably be worth it to uhhh, maybe a get a stool sample to have it checked, or take just one to a vet, to get a diagnosis. If one dies, it'd definitely be worth it to you to have a necropsy done, cause a lot of this stuff can wipe out your flock in nothing flat. There are a lot of things you could try, but you'd be wasting your money and time, as well as possibly complicating something, by buying a bunch of antibiotics and stuff. Here in Ohio the Ohio STate University Ag School at Wooster will help you for free with your poultry ailments; they're not always correct with telephone diagnosis, but it's an inexpensive place to start. I imagine colleges with an Ag program would do the same thing; they might even look at your bird for you. A last resort is, of course, to cull, disinfect, and start over...but that's an extreme measure we never wanted to take.