Rachel,
(Proceed to next method if one fails to resolve the problem):
Type in Start, Run dialog:
helpctr -regserver
regsvr32 itss
regsvr32 hhctrl.ocx
regsvr32 jscript
Fix Windows XP Help - from Doug's site:
http://www.dougknox.com/xp/utils/fix_windows_xp_help.htm
In _nothing_ helps, try reinstalling HelpCenter:
Open %systemroot%\inf folder and locate the PCHealth.inf file (might show as
PCHealth in W.Explorer). Right-click the file and choose "Install". Insert
your XP CD when prompted. If you have a Service Pack installed, be sure to
point to the %Windir%\i386\ServicePackFiles folder, or your slipstreamed XP
CD (if available).
--
Ramesh, MS-MVP
Windows Shell/User
Windows XP Troubleshooting
http://www.winhelponline.com
http://windowsxp.mvps.org
Windows XP Newsgroup Setup Instructions for Outlook Express:
http://www.microsoft.com/windowsxp/expertzone/newsgroupsetup.mspx