Help with Slipper Orchid!

[orchidgirl82]

Hi Everyone,

I have a bunch of phal's and only one slipper. I love them but know little about them and lately it seems as if the one I have isn't doing so well.

The leaves on the area with the old spikes (there are two which I cut down last year after the flower died) are turning brown and falling off. I don't know if this is normal or not after it flowers but I have seen no root or leaf growth on the rest of the plant. I have it potted in paph/phrag bark and I water it with the same fertilizer as I use on my phals about every week or so when it is dry. It is sitting on my windowsill getting southern exposure. The leaves look pretty limp and I REALLY don't want to lose this plant. Last time I looked at the roots some were rotten and I cut them off even though I don't water this one too frequently. I see no growth whatsoever. Any help would be appreciated.