Summary:

• Window's Live Mail(WLM) 'Quick views' can 'break' when a folder is deleted in WLM(within an Account or under the Storage Folders), un-subscribing to a newsgroup, or by deletion of an RSS Feed.
• Common symptoms of a broken/corrupted 'Quick views'  are an inaccurate message counter; a failure to display current messages; or a failure to display messages received, copied, or moved since the corruption.
• To repair the Quick Views counter's functionality a registry edit is necessary(see Note of Caution below)

Repair Method:

1.  Close WLM
2.  Open Regedit
3.  Start/Run/Regedit
4.  Navigate(in the left hand pane) to the following location:
     HKEY_CURRENT_USER\Software\Microsoft\Windows Live Mail\
5.  Click on Windows Live Mail(left hand pane) to reveal the key's content
6.  Using the cursor/scroll bar(right hand pane) find the entry 'SearchFolderVersion'
    - This entry is in the field/column with a header titled 'Name'
7.  Click on 'SearchFolderVersion' to highlight that single key
8.  Delete the entry  'SearchFolderVersion'
9.  Close Regedit
10. Open WLM
    - the registry key will be recreated and WLM will poll for unread messages

Note of Caution: 

- Registry editing can create serious problems if used incorrectly. Proceed with the above at your own risk.

- For additional information about the using the Windows Registry Editor 

• How to Modify the Windows Registry

Revisions:

April 15, 2008: Original Published Date

May 12, 2008:  Additional reasons for 'Quick view' corruption added(thanks Ildhund)

May 24, 2008:  Windows Live Tags added

Summary:

An Windows Update was released (April 8th, 2008) to fix four problems when Windows Live Writer uploads images to the Google Picassa service(Blogger)

This update also modifies the Windows Live Writer installed build version number.

More Information:

Available in Knowledge Base article KB951125  'Windows Live Writer update details'

Version Number after Installing the Update:

Windows Live Writer - 12.0.1370.325

To determine the version number

• Open Windows Live Writer
• Click on Help/About Windows Live Writer

Revisions:

April 08,2008: Original Published Date

May 23, 2008: Windows Live Tags added