About three days ago, I tried to send an email. I could not. I received a notice telling me"due to a problem with your browser, you message could not be sent" I am running Windows XP, on Earthlink Sprint DSL. Everything else on my computer works fine. I can search the internet and receive emails. Help, please! I can send email on Outlook Express, so it has to be a browser problem.

You could try a System Restore to a point prior to the problem:

start > All Programs > Accessories > System Tools > System Restore


How to reinstall or repair Internet Explorer and Outlook Express in Windows XP

http://support.microsoft.com/kb/318378/EN-US/

If you want to try and trace the error further:

Also view your Error Log via:

[1] Start Menu
[2] Help and Support
[3] Pick a Task
[4] Tools
[5] Advanced System Information
[6] View the Error Log

Look for any synchronous entries.

Also: look in your Event viewer: rt. click My Computer then click Manage then Event Viewer.
Or: Administrative Tools/Event Viewer or Start/Run/ eventvwr
Open the system as well as the application tabs & look for X errors. Click error line for details.
Post back the source & event id & Description especially of errors that seem to coincide with this issue.
Also check the Information lines that might coincide with this issue.

How to view and manage event logs in Event Viewer in Windows XP