Internet Explorer error while accessing a few links

When I attempt to access a few web links with IE 6 it comes up with an error message “An error has occurred in Internet Explorer. Internet Explorer will now close. If you continue to experience problems, please restart your computer “
Platform: Windows XP Prof SP 2, IE Version: 6.0.2800.1106: Update: SP 1
The error still exists even after restarting the computer several times.
It happens with sporadic websites and does not stick to certain ones. I see that it happens with mostly the software download sites. I have restarted the machine several times and still get the same error message.
Any suggestions?
