Finally managed to get the tetrus avatar located on my dropbox. (I'm very ignorant about dropbox)
(First of all install dropbox, which was difficult for me, probably because it was previously installed. Then sign on at dropbox.com.)
First a green tetrus jpg of the small size and small pixel numbers, was prepared. (I used Microsoft Office picture manager, from a few years ago).
After uploading the avatar to dropbox, in dropbox/sharing/links, make a shared link, in dropbox.
Copy the (pseudo URL) link to clipboard.
In Alibre:
Under UserControPanel / Profile /Edit avatar,
Paste the pseudo URL into the Link off-site box under the Alibre edit avatar window.
Change
http://www.dropbox...(various symbols and file name).... to
http://dl.dropbox...(various symbols and file name)...., and delete the ?dl=0 at the end.
(My final URL was
https://dl.dropbox.com/s/o5jowmy9w4jzuh ... Tetrus.jpg)
Add in the px X px values, which can also be observed on dropbox, or a graphics program.
The image file can be .jpg or .png, or .gif, 80 X 80 pixels (max), 9kB (max?).
Submit.
Note, URL links for existing Alibre avatars on the forum, (Windows7 computer), are viewable by right clicking on avatar, and selecting "properties."
- Brian
Currently deleting Photobucket bookmark.