Suddenly, clicking on a link in a received email causes IE 6.0 to freeze and I have to close it out in task manager to get computer to unfreeze. Operating system - Windows 2000 Professional. Can receive and send emails without a problem, just cannot click on a link.
Thanks for your help.

Try reviewing some of these articles then and see if they help you fix it:

Internet Shortcuts in Outlook Express Don't Start Browser [Q177054]
http://support.microsoft.com/support.../Q177/0/54.asp


Nothing Happens When You Click a Link in Outlook Express [Q176581]
http://support.microsoft.com/support.../Q176/5/81.asp


Q260238 - OLEXP: Hyperlinks in Outlook Express May Not Be Active:
http://support.microsoft.com/support.../Q260/2/38.ASP


OLEXP: "Send To" and E-mail Links Do Not Work w. Outlook Express:
http://support.microsoft.com/default...;en-us;Q306098


You Cannot Open New Internet Explorer Window or Nothing Happens After You
Click a Link
http://support.microsoft.com/default...B;EN-US;281679


Also might want to see this information from Frank Saunders, MVP-Outlook Express:


From http://www.fjsmjs.com/OE/nolinks.htm


Also you might want to look in your Event Viewer:

Click Start, point to Programs, point to Administrative Tools, and then click Event Viewer.