--- core.drush.inc.orig	2011-02-15 14:08:17.000000000 -0800
+++ core.drush.inc	2011-02-15 14:09:04.000000000 -0800
@@ -782,7 +782,7 @@
 }
 
 function drush_core_find_project_path($target) {
-  $theme_suffix = drush_drupal_major_version() >= 6 ? '.info' : '/style.css';
+  $theme_suffix = drush_drupal_major_version() >= 6 ? '.info' : '\style.css';
   $masks = array(
     conf_path() . '/modules' => "/^$target\.module$/",
     'profiles/default/modules' => "/^$target\.module$/", // Too early for variable_get('install_profile', 'default'); Just use default.