This is a further relevant error in the log:
Code:
[Mon Jun 01 21:43:40 2009] [error] [client 12.34.123.12] Caused by KeyNotFoundException in Configuration.cpp:234: Handler "x-httpd-php" not found
[Mon Jun 01 21:43:40 2009] [error] [client 12.34.123.12] Premature end of script headers: index.php