Attempting to run PHPUnit with a configuration XML file results in exception

I'm trying (for quite a while, with help from fellas at the PHP chat room) to succesfully integrate PHPUnit with PhpStorm.

I've set up the phpunit.xml file as follows:

<?xml version="1.0" encoding="UTF-8"?>
<phpunit
        backupGlobals               = "false"
        backupStaticAttributes      = "false"
        colors                      = "true"
        convertErrorsToExceptions   = "true"
        convertNoticesToExceptions  = "true"
        convertWarningsToExceptions = "true"
        processIsolation            = "false"
        stopOnFailure               = "false"
        syntaxCheck                 = "false"
        bootstrap                   = "bootstrap.php" >

    <testsuites>
        <testsuite name="Lamed Test Suite">
            <directory>Custom/*</directory>
        </testsuite>
    </testsuites>

</phpunit>

And configured PHP storm successfully to read from that file.

The problem is, I get the following error in PhpStorm's console upon running the tests:

D:\Websites\php\php.exe C:\fakepath\ide-phpunit.php --bootstrap D:\Websites\htdocs\lamed\tests\boostrap.php --configuration D:\Websites\htdocs\lamed\tests\phpunit.xml
Testing started at 23:51 ...

Fatal error: Uncaught exception 'PHPUnit_Framework_Exception' with message 'Neither "Lamed Test Suite.php" nor "Lamed Test Suite.php" could be opened.' in D:\Websites\php\pear\PHPUnit\Util\Skeleton\Test.php:100
Stack trace:
#0 D:\Websites\php\pear\PHPUnit\TextUI\Command.php(157): PHPUnit_Util_Skeleton_Test->__construct('Lamed Test Suit...', '')
#1 C:\Users\Dor\AppData\Local\Temp\ide-phpunit.php(95): PHPUnit_TextUI_Command->run(Array, true)
#2 C:\Users\Dor\AppData\Local\Temp\ide-phpunit.php(434): IDE_PHPUnit_TextUI_Command::main()
#3 {main}
  thrown in D:\Websites\php\pear\PHPUnit\Util\Skeleton\Test.php on line 100

Process finished with exit code 255

It's obviously reading that from the name= attribute on the testsuite element. The question is, why?

UPDATES

• I am running Windows Seven x64 SP1 and PHPStorm 4.0.3. PHPUnit version is 3.6.12.
• Typing phpunit -c "D:\Websites\htdocs\lamed\tests\phpunit.xml" in the CLI actually gives the same results.
• My Custom directory is found in the same folder as the phpunit.xml file.

I'm baffled. Would appreciate any sort of help.