Index: imageapi_imagemagick.module
===================================================================
--- imageapi_imagemagick.module	(revision 159)
+++ imageapi_imagemagick.module	(working copy)
@@ -159,6 +159,13 @@
 
 function _imageapi_imagemagick_check_path($path) {
   $errors = array();
+  // Try it out and return without errors on success
+  $handle = popen($path . " -version", 'r');
+  $im_version = fread($handle, 2096);
+  pclose($handle);
+  if (strpos($im_version, 'ImageMagick') !== FALSE) {
+    return $errors;
+  }
   if (!is_file($path)) {
     $errors[] = t('The specified ImageMagick path %file does not exist.', array('%file' => $path));
   }