Kanske dum fråga, men har du gjort detta redan? (Exempel från Lide 60)
Category : Using Toolbox
Description : "Unable to select TWAIN source" error message comes up when trying to use Toolbox (Windows)
Selecting the scanner source (for Toolbox)
(The procedure below describes selecting scanner from ScanGear Toolbox using the example of CanoScan LiDE60.)
1. Start up ScanGear Toolbox.
2. Click the [Settings] button.
3. Make sure if your scanner is listed in the pulldown menu of [Select Scanner].
4. Select your scanner, and then click the [OK] button at the bottom. (This example is selecting LiDE60.)