brush adjustment jpg?
I've downloaded Aperture from the App Store and am just learning basics. Previously I've edited photos in PSE. All my images are .jpg as my current camera RAW output is not supported by Aperture. I would like advice please re use of brushes. With all the adjustments shown using the Inspector HUD, the brush symbol does not appear. On the quick brushes dropdown all the options are greyed out. I've read the help manual and followed the basic instructions in the Aperture Welcome section to no avail. Can someone tell me if I'm missing something or if the file formats available tome cannot be edited using brushes? Thank you!
Intel iMac 20, Mac OS X (10.6.7), Airport Extreme, Airport Express. Too many iPods.