I've somehow managed to open two seperate safari applications and I only need one on my iMac. How can I close the other one permanently? I've hit the red x but it still shows up when I right click on the icon in the dock? And after a reboot, I click on the dock icon and it brings up two separate applications of safari. Any assistance will be appreciated. I've searched her on MR but haven't come up with a response which I'm sure will be really simple.