Editing in Camera Raw

[bentrod]

I am working through some tutorials in Lynda.com using Bridge and Camera Raw. I had been editing a photo then all of a sudden when I select the graduated filter tool I get the massage "Unable to create local adjustments, all local adjustment controls are set to have no effect on the image". I had been able to use this tool earlier and it worked fine. Just before I got this error message I had been trying some keyboard commands, did I hit the the magic combo to lock something up?

 

[Rephargotohp]

You need to Change a slider to something other than 0 in that Panel

 

[bentrod]

You need to Change a slider to something other than 0 in that Panel

Thank you