We have seen that URLs containing a tilde character '~' causes a "broken" link. FYI, the tilde can be replaced with "%7E" in the URL to prevent this. For example, Jez gave a URL in this post: http://www.8052.com/forum/read.phtml?id=49021

    http://panda.cs.ndsu.nodak.edu/~achapwes...S2/ps2.htm

which, when "fixed", looks like this:

    http://panda.cs.ndsu.nodak.edu/%7Eachapw...S2/ps2.htm