If you use Logitech Mouseware, download and install version 9.29.2 (or later) from http://www.logitech.com prior to applying Windows 2000 SP2.

If you have already encountered the subject problem, you can apply version 9.29.2 (or later) after you correct the problem:

If you have the Service Pack 2 uninstall folder

1. Boot the recovery console and log on with the administrator password.

2. Type the following commands:

      cd $Ntservicepackuninstall$
      copy i8042prt.sys c:\winnt\system32\drivers (press Y to overwrite the file.)
      Exit (Press Enter to restart your computer)

If no Service Pack 2 uninstall folder exists

1. Boot the recovery console and log on with the administrator password.

2. Type the following commands:

      cd system32\drivers
      ren L8042pr2.sys L8042pr2.old
      copy i8042prt.sys L8042pr2.sys
      Exit (Press Enter to restart your computer)