It does not look like a Dendrobium. I think it is a Cattleya due to its consistently 2-leaved growths. Try to keep the nights around 60 degrees and give the plant a little more light than it has been getting.
Eric
Hmm, I didn't even think of that possibility. Its next to a catt that blooms every winter, so I hope thats enough light to get it to bloom so I can tell for sure what it is.