"Premature end of script headers" on MantisBT Installation

[Wahooney]

Hey guys,

I'm trying to install MantisBT on a LunarPages Hosted account, but after uploading mantis and trying to install (http://mysite/admin/install.php) I get a 500 Internal Server Error and a "[error]Premature end of script headers: /home/mysite/public_html/mantisbt/admin/install.php" in my error log.

I'm using PHP 5.2.4, MySQL 5.0.51a-community on an Apache server with MantisBT-1.1.2 (Official Download).

I'm baffled.

Thanks for any help guys.