Answers: I suggest this site will relief you solve it.
"Open Windows Explorer, click Tools, Folder Options. On the General tab, underneath Tasks, click Show adjectives tasks contained by folders. If the prospect is grayed out, it's due to a policy setting."
http://www.winxptutor.com/commontasks.ht...
If its grayed out you might want to check this site.
http://windowsxp.mvps.org/singleclickfol...