Hi,
i just installed a fresh WPMU 1.1 and while browsing around in the admin section, i'm getting 500 Internal Server Errors and 404 Errors, while editing options or refreshing the write post page. I wonder what this errors mean, because after refreshing the page it works fine. I saw several errors like this in my error_log:
Premature end of script headers: php5.cgi
Wonder how can i debug this, or if i should downgrade to php4.