Another example of the GIF problem. Observe that wikipedia DOES show the same imapge properly (see http://en.wikipedia.org/wiki/Columbia_River_Knife_%26_Tool).
<gallery>
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File:TestImage1bppOutburst open.gif|old uploadFile:TestImage1bppOutburst open new upload.gif|new upload (same file, but now looks worse!)
</gallery>
Sorry about the martial looking example, it was the first file found on wikipedia when searching for "gif schematic" being shown in a gallery.