WordPress MU

I'm sure this is a newbie's question. I'm setting up a WordPressMu installation at http://uninaplo.unitarius-halo.net . Most of my themes have search boxes in the sidebar, but the searches never produce results. What more is required? Do I need to install a particular plug-in or reconfigure something in Mu itself?

Any help will be appreciated,

michael

Find the searchform in a theme; sidebar usually, but header, footer, index as well.

replace

<form id="searchform" method="get" action="<?php echo $PHP_SELF; ?>">

with

<form method="get" id="searchform" action="<?php echo get_bloginfo('url'), $_SERVER['PHP_SELF']; ?>">

Oh, this post made me remember I have to do this as well :)

For all the templates :(

Thanks for your help. I should mention that on a closer look most of the themes (from wpmudev.org) were okay, but for those that weren't your fix did the job.

Thanks again,

Michael