I believe one suggestion you may get from the experienced people will be to make sure your system is up to date. Especially, efl.
Edit: Since sef liked this post, I will have to guess he believes I am on to something.
When updating, I prefer to use the command line.
sudo apt-get update sudo apt-get dist-upgrade
Charles has posted some CLI-foo that lets you check the efl versionGo to the full post