__autoload() no workie on my 5.2 install...

Hey all. This is my first post, 'coz it's the first time I've ever had such a confusing problem with PHP. I recently got a VPS and compiled PHP 5.2.1 with the following options: --prefix=/usr/local/php5 --with-apxs2=/usr/local/apache2/bin/apxs --with-config-file-path=/etc/php5 --with-curl --with-curl-dir=/usr/local/lib --with-gd --with-gd-dir=/usr/local --with-gettext --with-jpeg-dir=/usr/local/lib --with-kerberos --with-mcrypt --with-mhash --with-mysql=/usr --with-pear --with-png-dir=/usr/local/lib --with-xml --with-zlib --with-zlib-dir=/usr/local/lib --with-zip --with-openssl --enable-bcmath --enable-calendar --enable-ftp --enable-magic-quotes --enable-sockets --enable-track-vars --enable-mbstring --enable-memory-limit --with-freetype-dir=/usr/include/freetype2 --enable-soap --with-mysql-sock=/tmp/mysql.sock Apache is 2.2.4 and was also hand-compiled. Meanwhile, at home, I have PHP 5.1.6 and Apache 2.2.3. At home, __autoload() works great. On the VPS, it doesn't work at all. Here is a small case: = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = test.php: <?php function __autoload($classname) { include_once(dirname(__FILE__) . "/$classname.php"); } $thinger = new foo(); echo $thinger->boo; ?> = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = foo.php: <?php class foo { var $boo; function foo() { $this->boo = "I wouldn't say 'boo' if this autoloader worked on my server...\n"; } } ?> = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = - = And, the crying begins: [nhawks@www ~]$ php test.php Fatal error: Cannot instantiate non-existent class: foo in /home/nhawks/test.php on line 5 Naturally for this simple test case, both files are in the same directory. When I do the same thing at home... [nhawks@skami ~]$ php test.php I wouldn't say 'boo' if this autoloader worked on my server... I don't understand why __autoload() would fail, I didn't explicitly enable it when compiling at home and I can't find anything via Google to help ... No clues whatsoever in my Apache error_log. When I try throwing: echo("Got here!\n"); ..into my __autoload() function, it reveals that __autoload() is never being fired. Please help. Nathan