Index: imageapi_imagemagick.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/imageapi/imageapi_imagemagick.module,v
retrieving revision 1.17.2.4
diff -u -p -r1.17.2.4 imageapi_imagemagick.module
--- imageapi_imagemagick.module	17 Apr 2009 17:58:03 -0000	1.17.2.4
+++ imageapi_imagemagick.module	14 May 2009 16:36:45 -0000
@@ -178,12 +178,16 @@ function _imageapi_imagemagick_convert_e
     return FALSE;
   }
 
+  // Specify Drupal's root as the working a working directory so that relative
+  // paths are interpreted correctly.
+  $drupal_path = $_SERVER['DOCUMENT_ROOT'] . dirname($_SERVER['SCRIPT_NAME'] ? $_SERVER['SCRIPT_NAME'] : $_SERVER['SCRIPT_FILENAME']);
+
   if (strstr($_SERVER['SERVER_SOFTWARE'], 'Win32') || strstr($_SERVER['SERVER_SOFTWARE'], 'IIS')) {
     // Use Window's start command to avoid the "black window" from showing up:
     // http://us3.php.net/manual/en/function.exec.php#56599
     // Use /D to run the command from PHP's current working directory so the
     // file paths don't have to be absolute.
-    $convert_path = 'start "window title" /D'. escapeshellarg(getcwd()) .' /B '. escapeshellarg($convert_path);
+    $convert_path = 'start "window title" /D'. escapeshellarg($drupal_path) .' /B '. escapeshellarg($convert_path);
   }
 
   $descriptors = array(
@@ -191,7 +195,7 @@ function _imageapi_imagemagick_convert_e
     1 => array('pipe', 'w'), // stdout
     2 => array('pipe', 'w')  // stderr
   );
-  if ($h = proc_open($convert_path .' '. $command_args, $descriptors, $pipes, $_SERVER['DOCUMENT_ROOT'])) {
+  if ($h = proc_open($convert_path .' '. $command_args, $descriptors, $pipes, $drupal_path)) {
     $output = '';
     while (!feof($pipes[1])) {
       $output .= fgets($pipes[1]);