Verticles all frozen in Blender 2.57

I’ld just finished main Model & skeleton for animation and had just started making shape keys. Well, I got first set shape keys done. I tabbed out of edit mode and was looking to make sure was right. I made the next shape key, but when I went to edit mode, none the vertexes would move at all.

I’ld post file to, but don’t know how to shrink file size down to post.

I figured out what was going on. I’ld clicked the view shapekeys in editmode button. ONce either placing that shape ke tofull or turning it off alltogether, I was able resume work again.