using a mac, os x 10.7, have tried this in firefox, safari, chrome, restarted, reinstalled plugins, etc.
when i go to dashboard/appearance/header, and attempt to either upload new image or choose from media library, the next step is crop image.
on the “crop image” age, there is no content. i do not see the image i selected/uploaded, there’s simply nothing there. there is nothing to crop. if i click the “crop and publish” button, i end up with a solid black image as the header.