Microsoft Feeds Synchronization

This message always pop-up on my screen:

Microsoft Windows

Microsoft Feeds Synchronization has stopped working

A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available

[close program]

when i click [close program] nothing happens..
it is so irritating..because this message always occur regularly about every hour..but nothing is affected..

what is the problem?

help me..