It sounds like y'all found the problem and it was with register globals being off? I'll add that get_input() that Josh spoke of.
shortbus, I found out (at least most of the times) why some urls won't work even though they are good urls. Basically, it has to do with server redirects. Let me see if I can clarify this. If you put in, say http://www.fish-tails.net (note there is NO trailing slash) in the address bar of your browser (or just click the link) watch the address bar and it will add the trailing slash, which is the server basically redirecting you to the default directory. Now, if someones home page is not the default directory and is in effect in another directory, the script can not resolve the new location because it is expecting the exact url.
In either case, php will not allow (at least from waht I've found out) to follow the redirect, hence the url is returned false.
I haven't figured out how to overcome this, so if anybody knows, please speak up.
Well, I was just previewing this post, and noticed that the trailing slash was added for me, when I stated there was no trailing slash. It appears the answer may be before me without knowing it.
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