Chapter 4: KX III Administration63Mouse Modes when Using the Mac Boot MenuWhen working with the "BIOS Mac" USB profile, to use the mouse in theMac Boot Menu, you must use Single Mouse mode since AbsoluteMouse Mode is not supported in the BIOS.To configure the mouse to work at the Boot menu:1. Reboot the Mac and press the Option key during the reboot to openthe Boot menu. The mouse will not respond at this point.2. Select Single Mouse mode. The mouse now responds.Note: Mouse speed may be slow while in Single Mouse mode.3. Once you are out of the Boot menu and back to the OS X, exit SingleMouse mode and switch back to Absolute Mouse mode.Selecting Profiles for a KVM PortThe KX III comes with a set of USB profiles that you can assign to aKVM port based on the characteristics of the KVM target server itconnects to. You assign USB profiles to a KVM port in the DeviceSettings > Port Configuration > Port page in either the KX III Remote orLocal Console.Administrators designates the profiles that are most likely to be neededfor a specific target. These profiles are then available for selection viaVirtual KVM Client (VKC). If a profile has not been made available, youcan access any of the available profiles by selecting USB Profile > OtherProfiles.Assigning USB profiles to a KVM port makes those profiles available to auser when connected to a KVM target server. If required, the user canselect a USB profile from the USB Profile menu in Virtual KVM Client(VKC).For information about assigning USB profiles to a KVM port, seeConfiguring USB Profiles (Port Page) (on page 141).