Internal server error

I have several sites that have gone down at the same time, giving me internal server error.

I have of course posted a ticket but as this breakage comes at the worst time possible (as if there was a good time for things to be down) I am wondering if there is anything I can do to fix this.

There is a lot of file missing in the error logs but those have been for days as far as I can see and the site has been functional, there is this line in the error log that makes me go huh?

[Thu Jan 22 10:50:12 2009] [error] [client 92.40.233.81] Premature end of script headers: php5.cgi

Is this something I can affect or is this a problem for the powers that be?

oh seems, DH team have fixed it, but then I had permission errors on my files ... added read for others on wp_config.php and presto site is back...

Thanx DH team for fixing it, still waiting for response from support ticket though :), but as the site is up I am happy waiting