--- xfce4-sensors-plugin-0.10.99.4~svn-r3775.old/panel-plugin/hddtemp.c	2008-02-26 16:04:04.000000000 -0200
+++ xfce4-sensors-plugin-0.10.99.4~svn-r3775/panel-plugin/hddtemp.c	2008-02-26 02:28:00.000000000 -0200
@@ -293,7 +293,7 @@
             &standard_output, &standard_error, &exit_status, &error);
 
     /* filter those with no sensors out */
-    if (exit_status==256 && access (PATH_HDDTEMP, X_OK)==0) /* || strlen(standard_error)>0) */
+    if (exit_status==256 && access (PATH_HDDTEMP, X_OK)==-1) /* || strlen(standard_error)>0) */
     { 
 		DBG  ("access %d\n", access (PATH_HDDTEMP, X_OK));
 		DBG  ("exit_status %d\n", exit_status);