When uploading a new company logo in PNG form, you may find that the background appears black.
If your PNG image is saved with a transparent background, it will appear with a black background in Brainshark. That is because transparency in images is not supported in Brainshark. As a workaround, you can either add in a plain background using an image editing program, or try to save the image as a JPG or GIF.
Note: logos should be 174 pixels wide by 56 pixels high, in GIF, JPG, or PNG format