How to fix clone stamp issue?

MAC OS / Photoshop CS5

As you can see in the attached image, my clone stamp selection doesn't extend out to the edges of the outline, which makes using it very clumsy to use. My PS installation at home and all the installations at this business don't do this.

I've tried messing with all the clone stamp settings, resetting the clone stamp presets, and resetting the general Photoshop preferences at startup. However, nothing I've tried has had any affect.

So how can I get this adjusted so that the clone stamp selected area extends out to the edges of the grey outline?