Last week one of my friend sms me, he said the Menu button had gone from the panel… Ooooo… He uses Linux Mint 6 as the OS. Actually, it’s the first time I heard a Menu button gone from the panel.
But, I remembered that in Gnome icons in panel are applets or shortcuts. So, I told him to right-click on the taskbar and click “Add to Panel…”, and then added “mintMenu” into the panel. And… the problem solved.