Automatically referring to index.php file

[ZeeLex]

HI all,
When I go to www.sitename.com/forum , the page can`t be find. If I include the index.php file (www.sitename.com/forum/index.php) then I can view my forum. I checked the log files and everything seems fine to me.
Can someone tell me why it is not referring to index.php file automatically?
Thanks for advice

[Steve Machol]

Delete the index.html or index.html file in that directory.

[ZeeLex]

Steve, there is no index.html or index.htm file in that directory.

[Steve Machol]

Then the only other possibility is that your server is not configured to automatically parse index.php files. You'll need to contact your host about that.