Convert to Grayscale grayed out
Oh, man... That's right up there with the timeless NY Post headline, "Headless Body in Topless Bar."
I'm sorry, I can't comment further. I'm at AI 12 (CS2), which does not have that feature.
Mylenium
had the same problem, make sure it's not a linked file ie. check in
layers if it is, and if so hit embed