The same bug for me, sometimes the grey rectangle appears above the cpufreq applet at boot time. I have to restart X to fix that...I have set a blue background color for the panel, but it paints the system one "above" the anyway working applet!
The same bug for me, sometimes the grey rectangle appears above the cpufreq applet at boot time. I have to restart X to fix that...I have set a blue background color for the panel, but it paints the system one "above" the anyway working applet!