Trouble Shooting

The vast majority of problems reported with this driver are actually machine specific configuration errors. You must insure that no other software is using the serial port that you want to use with the digitizer. You must disable other applications such as FAX drivers, other WINTAB drivers, dial-up+ networking, serial mouse drivers, and terminal emulators from accessing the serial port that is connected to the digitizer.

Conflicts with other software

To insure that no other software is using the serial ports on Windows NT, select Settings > Control Panel > Services. Stop and Startup any other tablet driver software.

Select Settings > Control Panel > Devices. Stop and Startup any other tablet driver software. It is usually a device beginning with wt. Check that the Serial device status is Started and Automatic. Check that the Sermouse device status is Disabled, unless you have a serial mouse connected to any of the COM ports.

Windows system without a mouse

This driver is not intended to be used in systems as the only system pointing device. A mouse must be attached to the computer to insure that the system cursor is visible in all windows on the desktop. This is a limitation of Windows and not the Bentley Digitizer Tablet Driver.

Individual tablet peculiarities

Most tablets with wireless pucks tablets will “go to sleep” if the puck is temporarily unused. This includes CalComp DrawingBoard series and SummaSketch series tablets. Pressing any button on the puck while in proximity will “wake” the tablet. If this does not work, and you are using a CalComp DrawingBoard series tablet, try pressing the 0 button twice while the crosshair is over the Config/Exit area on the tablet.

The Summagraphics SummaSketch Professional Plus line of digitizers have a variety of internal firmware that implements neither accurately nor completely the UIOF command standard. To improve this situation, this driver provides the following choices for UIOF protocol tablets:

Summagraphics MM 1812 (UIOF Format)
Summagraphics SummaSketch series with 12 or 16 button puck
Summagraphics SummaSketch II Professional Plus
Summagraphics Microgrid and Summagrid Tablet
Altek AC30 (Alternate ROM)

There is no way to automatically determine all variations in tablet firmware and which configuration will yield the best results with your particular tablet. You may have to try each tablet option until you achieve satisfactory operations.