Acrobat Pro XI - where did my document action go??

I've got two laptops - both with Adobe Pro XI installed.  Last night, I created a document action called Script1 so I could run some initialization scripts when the doc is first opened.  Things worked fine - no problems.

Today, I opened the PDF on the other laptop.  When I went into the document actions, Script1 was not there.  However, it appears that the action is still running when I open the document.

I can't modify any of the actions that are in the list.  And if i create a new Document action, double clicking on the action does not open a javascrip window.

Any idea what could be going on?