I have a second panel on top of my desktop with some application launchers, pager, etc. The problem is that each time I login, plasma rearranges these icons. I tried to lock the widgets but it still reorders every time I login.

How can I fix this? I'm using kde4.3.3.

PS I was thinking to change the rights of .kde4/share/config/plasma-desktop-appletsrc to read-only, but then I will probably not be able to add more widgets...