My MX 3200 keyboard types multiple characters when I press a key once

Logitech has released a firmware update for the MX 3200 USB mini-receiver that addresses this issue. To install the update, follow these steps:

If Logitech’s Mouse and Keyboard Software (SetPoint) is installed and running, exit SetPoint by right-clicking the SetPoint icon and choosing Exit. The SetPoint icon can be found in the Windows notification area (System Tray) that is usually located in the bottom-right corner of the Windows desktop, next to the system clock.
Click on the appropriate link below to download the firmware update.

Windows Vista
Windows XP

Once the firmware installer has downloaded, double-click the installer. Then follow the on-screen instructions to update your firmware.

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