Special Instructions for Windows NT Users (c) Copyright 1998, Mitsumi Electronics Corporation I. Problem with NT 4.0 Service Pack 3 Users of Windows NT 4.0 Service Pack 3 will notice that the scrolling functions of the Mitsumi Scroll Mouse do not work. The Windows Registry must be updated according to the procedure in Section II below to restore the scroll functions. Users of other versions of Windows NT should not have this problem, nor should any Registry updates be necessary. You should be able to plug in the mouse, turn on your system, and NT will recognize and support the scroll functions. II. Correcting the problem by updating the Registry The following procedure is for Windows NT 4.0 Service Pack 3 only. Do not use this patch if you are using any other operating system, or do not have Service Pack 3. 1) Turn on or reboot your system, and start Windows NT 2) Insert your Mitsumi Scroll Mouse diskette into the floppy drive 3) Click on the Start button 4) On the Start menu, click on the Run button 5) Type the following into the dialog box: a:\ntupdate If your floppy drive is not drive a:, be sure to replace the a: with the letter of your drive. 6) Press Enter. The Registry will be automatically updated. 7) When prompted, press OK. 8) Reboot your system. After re-booting, the scroll mouse should be fully functional.Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.