Hi fleischer444. I wonder if either:
- PHP is not installed (correctly?)
Try putting a phpinfo.php in the same directory and see what happens
- Friendly HTTP Errors are enabled
If you’re using IE, Try UNchecking Show Friendly HTTP Error Messages (Tools->Advanced) and maybe the server will show you a more detailed error
Good luck, I hope that helps! (I am new to WP, too, so not terribly advanced in the debugging here just yet)