When configuring the screen in e17, the mouse acts quite strange, more to understand looking this video in a normal usage mode: http://main.elivecd.org/tmp/enlightenment/resolutions-strange-behaviours-in-0.17.1.ogv
Note: Before to record the video I also experienced that a second screen appeared in the configuration (was in laptop without anything connected, so only one screen), with same name (LVDS1) too
Very easy to reproduce, in any of my computers