You Cannot eject your computer because one of the devices in the docking station 'ECP Printer Port (LPT1)', cannot be stopped because a program is still accessing it. This is for a Lenovo Thinkpad T61 with Windows XP SP2 and Norton Antivirus 10.2. The machine was lately changed by the addition of a Lexmark Printer. We deleted the port and printers, updated the BIOS but the problem is still not fixed.