I recently purchased a new 27" iMac and decided to use my old 27" iMac as a second monitor. All went well with the setup, I can connect to my work desktop and it uses the second monitor but I have a strange issue, on the second monitor everything is shifted up and to the left a little bit. This causes issues when trying to click a checkbox, I have to put the mouse pointer down and to the right of the checkbox to actually click it. It seems as though if the screen wasn't shifted up and left then I would be clicking on the actual checkbox. I am using VMWare Horizon Client 5.4.3. Any help with this would be much appreciated as this issue is totally annoying.