Toshiba Satellite A-105, Windows XP. PRO/Wireless 3945ABG disables when the computer goes on Standby, Hibernate, Reboot, or Shut Down. Works fine when I go to the PRO/Wireless screen and "enable". Works until I place computer on Standby, Hibernate, Reboot, or Shut Down, then something disables the PRO/Wireless function. Worked fine for years, then blooey! Only downloads before the problem were an AVAST anti-virus update and an Adobe update. Any clues?