Operation Manual

Troubleshooting

If you experience problems installing the driver, use the following procedure and

reinstall the driver.

1 Delete the A-PRO’s driver.

2 Install the driver again as described in “Installing the Driver” (p. 12).

The MIDI load can be lightened in the A-PRO driver setting dialog box.

1 Exit all programs that are using the A-PRO.

2 Open the “Control Panel” and set the display mode as follows.

• Windows 8/Windows 7: Icon view

• Windows Vista/Windows XP: Classic view

3 Double-click the A-PRO icon.

The “A-PRO Driver Settings” dialog box will appear.

4 Place a check in the [Lighten Load] check box.

5 Click [OK].

If the“Driver Signing Options” setting is set to [Block], you cannot install the driver.

Configure as follows.

1 Open the “Control Panel,” click [Performance and Maintenance],

and then click the [System] icon.

If you’re using the Classic view, double-click [System].

2 Click the [Hardware] tab, and then click [Driver Signing].

The “Driver Signing Options” dialog box will open.

3 In the “Driver Signing Options” dialog box, select [Warn] or [Ignore],

and then click [OK].

4 Click [OK] to close the “System Properties” dialog box.

5 Install the driver as described in the procedure for “Installing the

Driver” (p. 12).

When you have completed the installation, return the “Driver Signing Options”

setting to its original setting.

Reinstalling the driver

Lightening the MIDI load (Windows)

Driver signing options setting (Windows XP)

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