This is a bug, which affected Skype on Windows, Linux and MacOS X.
Solution is to delete shared.xml from your settings directory. Skype has provided detailed instructions:
Windows Vista and Windows 7
- Close Skype.
- Right-click
the Skype icon in the system tray (at
the bottom right of the screen)
-
Choose Quit.
- Ensure that “Show
hidden files and folders” is switched
on.
- Click Start, type run and
press Enter.
- Type control
folders and click OK.
- Select the
View tab and ensure relevant entry is
enabled.
- Locate the shared.xml
file.
- Click Start, type run and
press Enter.
- Type
%appdata%\skype and click OK.
-
Delete the
shared.xml file.
-
Restart Skype. The
shared.xml file
will be recreated.
Windows XP
- Close Skype.
- Right-click
the Skype icon in the system tray (at
the bottom right of the screen)
- Choose Quit.
- Ensure that “Show
hidden files and folders” is switched
on.
- Click Start and then Run…
- Type control folders and click OK.
- Select the View tab and ensure
relevant entry is enabled.
- Locate the
shared.xml file.
-
Click Start and then Run…
- Type
%appdata%\skype and click OK.
- Delete the
shared.xml file.
- Restart Skype. The
shared.xml file
will be recreated.
Mac OS X
- Quit Skype.
- Go to the folder
~/Library/Application Support/Skype/
- Delete the file
shared.xml (it will be recreated once you open Skype
again, this is fine).
- Start Skype.
I'm using Linux, so for me it was:
- quit Skype
rm ~/.Skype/shared.xml
- start Skype