The Calcomp DrawingBoard III is a digitizing tablet used to turn drawings, traced outlines, and precise pointing movements into computer input. Its driver enables communication between the tablet and Windows so compatible software can receive input from the drawing surface and connected pointing tool. When choosing a download for Windows 11, 10, 8, or 7, check the package notes for explicit support for your operating system and hardware configuration.

Key Features

• Tablet-to-PC communication: Provides the software connection needed for Windows applications to receive position and button input from the CalComp digitizer.
• Precision input support: Allows compatible drawing, drafting, and tracing applications to use input from a supported stylus or cursor.
• Configuration options: Depending on the driver package, settings may let you adjust the active area, coordinate mapping, and pointing-tool behavior.
• Application integration: Helps supported software work with the tablet through the input interfaces included in the driver. Available functions depend on the application and driver version.

How to Install

1. Check your setup. Confirm that your tablet is a Calcomp DrawingBoard III, identify its connection type, and check whether your Windows installation is 32-bit or 64-bit. If you use an interface adapter, verify that it has its own compatible driver.

1. Select a suitable package. Review the download documentation for your exact device and Windows version. Do not assume that a legacy driver supports Windows 11 or Windows 10 simply because it works with Windows 8 or Windows 7.

1. Prepare for installation. Close drawing and CAD applications. If the installation instructions require removing an older tablet driver, uninstall it first and restart the computer.

1. Run the installer. Extract the downloaded archive if necessary, launch the setup program, and follow its instructions, including when to connect and power on the tablet. Restart Windows if prompted.

1. Configure and test input. Open the installed configuration utility, if provided, and check the tablet connection and available mapping settings. Test movement and buttons in your intended application before beginning a drawing or tracing task.

Common Issues and Fixes

• Installer fails or driver won’t load on modern Windows: The DrawingBoard III relies on legacy CalComp/Wintab drivers. Run the installer as Administrator in Windows XP compatibility mode; if the INF is unsigned, temporarily disable driver signature enforcement or install manually via Device Manager. Avoid Windows Update’s generic driver.
• Tablet not detected: Check the serial/DB-9 cable is fully seated, the power supply is connected, and the correct COM port is assigned. Test another cable/port; USB-serial adapters with unsupported chipsets often fail with this digitizer.
• Cursor jumps or Wintab conflicts: Remove other tablet/Wintab drivers (Wacom, Huion, etc.) and old CalComp versions, then reinstall one CalComp driver. Recalibrate the active area and confirm the tablet’s serial protocol/baud settings match the driver.