how do i delete an icon from the desktop but keep it on the luncher? i installed steam and the program created two icons one in the luncher and one on the desktop. when i try to delete the one on the desktop the other one is also deleted. i only want to keep the one on the luncher. also the version is 12.04. i am a fist time user of Ubuntu and it seems confusing some times. if you can help thank you in advance.