--- sensors-applet-1.7.1.ebuild	2006-07-04 13:39:01.000000000 +0930
+++ sensors-applet-1.7.1-r1.ebuild	2006-07-04 13:51:44.000000000 +0930
@@ -34,3 +34,13 @@
 	gnome2_omf_fix help/Makefile.in
 	gnome2_src_compile
 }
+
+pkg_postinst() {
+	ewarn ""
+	ewarn "If you are upgrading from a previous version of GNOME Sensors Applet"
+	ewarn "you will need to first remove and then re-add any instances of the"
+	ewarn "applet to your panel, to prevent errors caused from a change in the"
+
+	ewarn "format of the stored sensor data."
+	ewarn ""
+}