I was working on a page in SharePoint Designer working with data views. The page was 95% done, when I went to open the page again, and each time I did, the program crashed. After trying several more times, I decided to rebuild the page, thinking it was just a fluke. When I got to one particular part, which happened to be a Content Editor Web Part (CEWP), it happened again. So I had found the culprit. Now try to find out what was causing SharePoint Designer to crash. And this isn't anything huge at all just a simple thing. I opened the CEWP in the browser and looked at the source code (on the original page that had started this whole event). The CEWP had a Link <a href="yoururl.com">Link Text</a><a href="yoururl.com"></a>. Once I removed the second link with the empty title, everything worked like a charm.