is this coelogyne sick or healthy?

[frostedeyes]

i bought a coelogyne it looks pretty fine root bound blah blah! so first thing i untie them and make it freely coz its tightly wrapped (root bound). heres the prob. i bought it and well the leaves are having this accordion thing so i suspect its medium is soo dry. well watering them every morning. the light is the same with cattleyas. i dont see anything problem with the leaves. then one day i was looking at them eeK! theres yellow tinge on the lower part anyway im going to post some pics please tell me if this is still alright. the leaves are still green. i touch the stem and its firm dunno wats wrong? could this be natural or dying! oh no!!!