No Thumbnail option in View button dropdown menu on Win2000   

In my NSE, I dont get a 'THumbnail' option in the View button drop down menu 
on WIndows 2000. My NSE is done using ShellDefView. The thumbnail option is 
available and works fine on XP/2k3, etc.

Please help me!

John

date: Fri, 6 Jun 2008 16:57:47 +0530   author:   J Crowe