I downloaded K9 bluecoat software on my computer. I decided to uninstall it and it took forever but eventually i uninstalled it, or so I thought. what it is, is a internet blocker and when you search for the softeare in the finder nothing comes up, but in the "other" section of "system prefrences" the software is still there. When i try to uninstall the software in the "other" section a black screen drops down my computer and i have to restart it only to find it still there when i come back. How can I uninstall this software, PLEASE HELP ME!