Cannot upload images to presentation

Cannot upload images to presentation

I am attempting to upload images to display in a presentation from my computer. When I go to add an image, I see the upload bar scan quickly from left-to-right, to 100%, where the screen freezes. The image is never uploaded. When I check my image library, the image name is displayed under the icon of a broken image. Images are jpgs, not large files.


Update! This problem seems to be browser specific. Switching to Safari, I do not encounter this problem. (Had been using Firefox on a Mac.)

Many thanks for your prompt assistance,

Emerson