A wee bit of sunshine?

I am finally making some forward progress. LaTeX is now working fully on my PC, so I have one computer on which I can work. I have gotten rid of the ugliness that is XP and have a reasonable looking interface on my work computer now. Funny how that was sending me over the edge.

I am also making progress on the math, by using the formulas in my calculus text book for implicit derivatives that I always thought were silly busy-work when I first learned them. I am starting to get repeat answers that I am confident are correct.

Basically (and I know you are all hot and heavy for this), but my task is to find dMu/da with the function
F[Mu[a], Lambda[Mu[a],a],a]=0.
I was getting tripped up in my handling of lambda, but I think I have it all now...