Tips for docking station support on ACPI ThinkPad computers:Here are some helpful tips to follow for docking station and port replicator use while runningWindows 2000 on your ACPI ThinkPad computers:• If you attempt to undock your computer while some data files are being used or“open” by a device located on the docking station or port replicator, Windows 2000will display a warning message indicating that you need to close the application orfiles before undocking. If another warning message appears while attempting toundock the system-unit, such as “a device about to be undocked can not be stopped,”follow the instructions before completing the undocking.• If you undock your computer while it is in Hibernation mode and then wake it in astandalone configuration, computer performance afterwards will be unpredictable.This occurs because the operating system assumes that the computer is still attachedto the docking station or port replicator. Windows 2000 will attempt to detect andconfigure the devices that are located on the docking station or port replicator.Because ThinkPad docking stations and port replicators do not have a mechanism toprevent an undocking while the computer is in Hibernation, you must be aware whenthe docked system is in Hibernation mode.When the computer is in Hibernation mode but not docked, if the computer is thendocked and awaken from Hibernation, the operating system will detect the dockinghardware and reconfigure to the appropriate docking profile or configuration. This isa supported feature while running Windows 2000.• If devices are removed from your docked ThinkPad while either in Standby orHibernation mode, Windows 2000 will report a “Device Surprise Removal” warningmessage indicating what device was unexpectedly removed and was not properlystopped and removed by the operating system.• On the ThinkPad 570 and 570E, Windows 2000 offers docking support andconfiguration in three ways:1. If the computer is attached to the UltraBase unit, undocking can be initiatedeither by clicking the “Eject PC” option in the Start menu or by pressing theeject request button in the front of the UltraBase unit.2. If the computer is attached to the UltraBase unit and the IBM Port Replicatorwith Advanced EtherJet port, Windows 2000 interprets this configuration as atwo-tier docking system. Under Windows 2000, the user can easily dock andundock the system to and from the UltraBase connected to the IBMAdvanced Port Replicator. When the system-unit is docked to the toUltraBase unit, the operating system will automatically connect and detectthe IBM Advanced Port Replicator. Undocking the system-unit fromUltraBase unit will automatically result in disconnecting it from both theUltraBase as well as the IBM Advanced Port Replicator. This can beaccomplished by pressing the eject request button located on UltraBase unit.3. If you want to undock the computer from the IBM Advanced Port Replicatorbut still have the computer attached to the UltraBase, you must press the ejectrequest button marked with a “1” located on the port replicator or by clickingthe “Eject PC” option in the Start menu. If you press this button or select the“Eject PC” option, only the IBM Advanced Port Replicator will be undocked,