Comment 24 for bug 1335492

(In reply to Eric Koegel from comment #6)
> Here's the rationale for the rc files:
> The .rc files are how Xfdesktop sees the space left on the screen. Things
> like the xfce4-panel may reserve space and xfdesktop respects that. The
> overall idea is that if your monitor goes through a couple resolution
> changes when your PC starts up or if you decide to play a game then your
> desktop should return to its old layout when it goes back to that
> resolution. Same thing with multi-monitor changes; you can have different
> layouts when your laptop is docked. The downside is that Xfdesktop doesn’t
> know when an icon position change should invalidate the other saved
> resolutions so in that case icons may change positions but Xfdesktop tries
> to minimize those moves.
>
> Is it just one icon that gets messed up or all of them do? It may be due to
> something changing that causes xfdesktop uses an older .rc file (different
> panels or something like it on the desktop).

All icons change their order. The locate in top left corner.