It happend to me before...Dont know why..
Posting a picture
Go onto your homepage.
Look toward the top right side and you will see where it says "Control Panel"
Just to the left of that it says "Edit Profile" (click on edit profile)
http://www.chess.com/home/edit_profile.html
Ok, from here, you will see a box marked "Browse" click on that and a box appears showing you different files and programs on your own computer. What you need to do, is locate the photo you want to add as your new avatar.
The image must be no more than 100 x 100 pixels and must be either a gif, jpeg or png image
If its on your computer desktop, click on the photo, then on "ok" on that box.
This then enters the text location into that Browse box ..
Scroll down to the bottom of the page, and click the box marked "Save Changes"
Go back onto your homepage, and press the keyboard keys Ctrl and F5 and your picture should then appear :)
If you're still having problems, mail it to me as an attachment and i'll add it for you.
I wonder if anyone else is having or haas had trouble posting an image. I have been attempting to insert a photo which is 94 x 95 pixels and only 8 k in size. I have tried using .jpg, .gif, and .jp2 formats. The browse feature lets me find a picture in my files but when I select it nothing happens.