Amesiella monticola is having a problem
I bought this Amesiella monticola orchid in October 2009 at Washington, DC. The plant was in bloom with fragrant flowers at that time. It was doing well till now. Please see the pictures, the leaves of the plant are becoming pale and one of the leaves is browning out. Earlier the leaves used to be in a nice green color. The temperature is around 80 to 90 degrees Fahrenheit. The humidity varies from 40% to 60%. Can some one please let me know, what is going on and what I should do to save the plant. Here is the link to the pictures:
Hope to get some good advice from you guys. Thank you.
P.S: I have trouble with two of my other orchids too. I will post them later.