Brush in CS4 defaults to crosshairs

Even though I change the brush in the cursor preferences to the 'Normal Brush Tip', it defaults back to the 'Precise' brush tip after I've used any other tool. Any suggestions?

Using PS CS4 11.0.1.
Mac Pro - OS 10.5.6

Have you checked the caps lock key?

Yes, it isn't on.

The only plug in I have in PS is SiteGrinder Pro.