Edirol UA-20 User Manual

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69
Troubleshooting
7.
A dialog box will ask you to confirm deletion of the device. Verify the 
contents of the dialog box, and then click
 [OK]
. In the same way, delete all 
indications of 
“?Composite USB Device”
“?USB Device”
“USB Device”
and 
“USB composite device”
 that you find.
8.
If you find 
EDIROL UA-20 
with a yellow 
“!”
 or a red 
“?”
 displayed beside it, 
delete this in the same way.
9.
When you have finished deleting the unwanted devices, click
 [OK]
 in the 
System Properties
 dialog box.
10. Turn off the power of the UA-20, then delete the driver. (➝ 
11. Restart Windows. Then install the driver once again. (➝ 
* If the problem still occurs after you have taken the above measures, please refer also to the 
Readme file for the USB driver. The Readme file is on the CD-ROM.