Include fails when "./" is in front of file name

This works: include("file.inc.php"); This doesn't: include("./file.inc.php"); I can't figure it out! PHPMyAdmin uses "./" so it's obviously not working. Here's my environment: Win2003 Server w/ IIS 6 PHP 5.2.5 setup as ISAPI All PHP and httpdoc directories have read, write, and execute permissions given to IIS_WPG, IIS_USER, and NETWORK SERVICE PHP.ini's include path is: include_path = ".;.\includes;.\pear" (I've also tried include_path = ".;./includes;./pear") phpinfo() works fine. Anyone have any ideas? Thanks! Noah