I grew this one at one time - it's one of the many plants I lost when my son was ill.

From what I understand, this cultivar was created specifically to grow in lower light, and to resist leaf drop. (So much for that, huh? (Ã) )
With that in mind, (I hate to say it, but...) I'd say too much light.
What type of light exposure is yours receiving?

I lost my beautiful "Midnight" to spider mites, but it certainly did NOT resist leaf drop better than any other ficus. :( Mine was in a West exposure with some direct sun but I never noticed the leaves converting back to a regular green color---mine stayed the darker green...

It's been in bright fluorescent light (like, 6 inches from a shop light with two 48-inch bulbs), with a small amount of indirect natural light, more or less since I got it. I've moved it to a slightly darker spot within the last few weeks, though the situation is similar: fluorescents with a little bit of natural.

Also, it didn't seem to resist leaf drop any better than any other variety as far as I'm concerned, and the ones that stayed in the greenhouse at work weren't any better.

If it helps: a lot of the older leaves have shifted orientation, to where now they're almost completely vertical, with the "top" of the leaf now facing the outside. When I first noticed it, I assumed it was probably because most of the light was coming from the side of the plant, instead of from overhead, but maybe I misunderstood what the plant was saying?

I've had mine since 02. It slowly throws out steady grow year around here.
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Yours is Much nicer then mine, I think mine needs to be cut back.

Hi treeple! Welcome to Gardenweb.

What a nice testimonial and pic of your lovely plant! Thanks for sharing your story. What do you think has kitty mesmerized?

Polly, that's a fine tree! What is below it to the left?

Mr_S, are you still around? Or just completely immersed in orchids?, I think?

Monstera, its one of my favorites

I think Mr Subjunctive has stopped visiting here but he still keeps a blog that has a lot of good plant info.

Here is a link that might be useful: Mr Subjunctive's Blog