Cannot start Microsoft Office Outlook. Cannot Open the Outlook Window

Hi friends,

I ran into this weird problem this morning... after restart of my computer my Outlook express [Office 2007 on Windows 7 - 64 bit] won't start ...

Cannot start Microsoft Office Outlook. Cannot Open the Outlook Window

Following command helped me to solve it.... 

C:\Program Files (x86)\Microsoft Office\Office12>Outlook.exe /resetnavpane