I've found several of the wiki pages have images that are too large to view unless I maximize my browser window.
It's fairly easy to limit the size of the image by adding maxwidth and/or maxheight parameters to the image name.
For example, the default image tag looks like this:
{{$ media:wide.png}}
But the size parameters (one or both) can be added like follows:
{{$ media:wide.png?maxwidth=600&maxheight=600}}
See this page for this example in action: http://wiki.logos.com/Image_size_test_example