There’s a difference between turning on “share my picture” from the IM window and from Preferences. If you check “share my picture” from the IM window it’s valid only for the current session, next time you sign in Y!m goes back to the setting in Preferences. Make sure you set it on in Preferences. If your friends still don’t get your pic in the corner of IM window, I’m pretty sure yahoo file transfer server is too busy. Changing between “share my picture” and “don’t share a display image” has immediate effect, if somehow yahoo understands that you change the pic, your Y!m sends the png file to yahoo file transfer server and the server sends to ALL YOUR ONLINE FRIENDS and this is where the process may get stuck. In case yahoo server is too busy, because it’s the file transfer server, it sends back to you a packet with something like “HTTP/1.1 999 Unable to process request at this time — error 999rn”. There’s no popup, you can see it if you run a packet sniffer.

well, i tried changing it from preferences but it automatically unckecks it back to “dont share my pic”.its been like this for months now and i cant seem to find any solution, ive downloaded several versions of yahoo and changed firewall settings but no use.