Update
For anyone having problems logging into SourceBans, its probobly because you have 'register_globals' set to on. For one thing, it should be off, and another thing is it could be a security problem.. So its best to always have this off.
Either turn it off in the php.ini file - OR if you have no idea what im talking about, or your site is being hosted by another company, then download this:
http://sourcebans.net/downloads/htaccess.zip
and place that in the same folder as index.php. This will turn off register_globals for that folder
(only if you are using apache.)
if you are using IIS, then:
1. Shame On you
2. Shame on your host
3. get your host to turn it off
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