thanks for the reply... i've had her for 6 years now and though she's turned water down from time to time, not for several days in a row before. she's had a good long soak, though, and i keep "showing" her to the water to try to "remind" her... but you know that saying about how you can lead a horse to water...

she's not lightweight or "off" in any way. i guess if it continues i'll ask the vet what he thinks.