If I get an email via Windows Mail and it has a www. something link, if I select the link I get a message not found. This previously worked ok but now it doesn't. How do I get it working again
Do you know when this problem began? Try a System Restore to a point in time BEFORE the problem began. Here's the procedure: http://www.vistax64.com/tutorials/76905-system-restore-how.html. Be sure to check the box to show more than 5 days of restore points. If the first attempt fails, then try an earlier point or two. NOTE: You will have to re-install any software and updates you installed between now and the restore point, but you can use Windows Update for the updates.
I hope this helps. If not, post back and we'll try some other options.