It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Avatars: GIF and JPEG file formats only with a maximum dimension of 160 pixels wide, by 320 pixels tall. File sizes are not to exceed 75k, and animated GIF's are allowed. (physical size can extend up to 400 pixels tall for images under 50k in file size)