open web sites within email message

Hi all,
Can’t open underlined web sites I get in email messages. It was ok before, what changed in my Outlook Express? Or did I do something unknowingly in Avast?
Thanks, Nain
Windows XP Home

Could be or could not be…
Is your Windows fully updated?
Sometimes this problem is just for a specific email message… others work perfectly.
Maybe some malfunction of the html of a specific mail.

If you have more than one browser check and ensure on of them is the default browser, this happened to someone else a couple of days ago.

Hi, and thank you for the help! You were right David–the check mark somehow was removed from IE being the default browser.
Many thanks and internet hugs, Nain

Thank you for letting us know what resolved the problem, it can help others browsing the forums for a solution to their problem.