A while back I created a shortcut to the shared “All Users” desktop. I placed it on my admin desktop so I could easily add new items for everyone. It worked as expected, letting me drag&drop to copy/move items as needed. Given that it was effective, and a likely permanent fixture on my desktop, I decided to change its icon, from the default “folder” to a “desktop”. That worked fine. BUT, the shortcut no longer worked correctly. Now, it sent items to my desktop, instead of the shared desktop!
On investigation, I found the shortcut target had somehow changed from “…All UsersDesktop” to “…(myID)Desktop”. I corrected it manually, but it’s behaviour remained unchanged. Looked again, and the manual correction was gone!
Any idea HOW this happens, let alone WHY? 
To try it for yourself, navigate to “…Documents and SettingsAll Users”. RIght-drag the “Desktop” folder to your desktop, and select “Create Shortcuts Here”. You can now double-click (open) it check the contents of the shared desktop. You can also drop items on the shortcut to place them on the shared desktop.
Now, right-click the shortcut and select properties. Note the value in “Target:”, then select “Change Icon…”. Pick an icon, any icon (even the default), and click OK. The selected icon displays in the top left corner, and “Target:” appears unchanged. Click OK.
Double-click (open) the shortcut and you should see your desktop, not the shared one that came up before the icon change! 
This may not not be the most critical issue around, but it does bug me when the system does it’s own thing, and especially when I can’t figure out why? 
