hamiljf,
Sorry that you are seeing this issue.
1. Can you please switch to a new workspace and see if the issue persists?
2. Please copy paste the contents of the .log file which is located at <workspace dir>/.metadata/.log to help us investigate further.
3. You can also visit the documentation for MyEclipse from here : http://docs.myeclipseide.com/index.jsp
4. MyEclipse 2014 is our latest release.If possible please update to the latest version. You can download it from here : http://www.myeclipseide.com/index.php?name=Recommend_Us&req=Download&version=ME
You can install MyEclipse 2014 to a different location and use the same license you have currently.
Let us know how it works for you.