diff -ur xfce4-cpugraph-plugin-0.3.0.orig/panel-plugin/cpu.c xfce4-cpugraph-plugin-0.3.0/panel-plugin/cpu.c
--- xfce4-cpugraph-plugin-0.3.0.orig/panel-plugin/cpu.c	2005-10-09 12:06:46.000000000 +0300
+++ xfce4-cpugraph-plugin-0.3.0/panel-plugin/cpu.c	2007-08-04 16:31:31.000000000 +0300
@@ -626,7 +626,7 @@
     base->m_CPUUsage = GetCPUUsage (&base->m_OldUsage, &base->m_OldTotal);
 
     memmove (base->m_History + 1, base->m_History,
-             (base->m_Values - 1) * sizeof (int));
+             (base->m_Values - 1) * sizeof (long));
     base->m_History[0] = base->m_CPUUsage;
 
     /* Tooltip */