Some users have this issue without any obvious reason..

Follow the steps bellow

1. Go to "C:\Users\USERNAME\AppData\Local\Microsoft\Windows Live\Services\Cache"
2. Open "Config.xml" by right clicking the file and selecting Edit. (It will probably open in Notepad.)
3. Go to File and select Save (in Notepad) without making any changes. If save is greyed out just add a character at the end of the file and then delete it.
4. After 10-20 seconds close gadget and start it again.

 * replace "USERNAME" in the above path with the name of the currently logged on user.