Ignision SE modifies the OS X system configuration when it is installed so it is necessary to uninstall Ignision SE rather than simply dragging it to the trash
Ignision SE is uninstalled by selecting "Uninstall Ignision SE" from the Ignision SE "File" menu.
You will be prompted to confirm that you wish to uninstall. When you confirm that you do want to uninstall, Ignision SE will be completely removed from the machine and the system login screen will be restored to what it was before Ignision SE was installed (which is likely to be the default OS X login screen). Ignision SE will prompt you to reboot your machine when uninstallation is complete. It is strongly recommended that you do promptly reboot to ensure stable system operation.