Hi:
Did you read post #2 by rebel007? It sounds like your unit does need a firmware update.
He asked did you update the firmware for your Octa-capture unit. The firmware is not the driver.
You should go to the Octa-capture site and read to find out how to view and update the firmware version for the unit, then, if necessary, download the new firmware version and do the update for the firmware.
EDIT:
I'm reckoning the firmware update instructions are in a .pdf that's included with the
OCTA-CAPTURE System Update Version 1.51 download. The below excerpt is taken from the Roland Octo-capture download section of the Roland site:
This is the latest operating system version for the OCTA-CAPTURE. Please refer to the "OCTA-CAPTURE v1.51 Update Procedure and Added Functions” pdf document included in this download for the update procedure.
IMPORTANT NOTICE: When you use the OCTA-CAPTURE Version 1.51, you MUST use the latest driver (Ver.1.5.0 or later).
OCTA-CAPTURE USB Driver Windows v1.5.2This is the USB driver for Windows 8/8.1, 7, Vista and XP.
IMPORTANT NOTICE:* Uninstall the old driver before you install the new driver. For uninstall procedures, please refer to the Readme.htm file that is created when you extract the download of the driver.
* When you use this driver version, the OCTA-CAPTURE system program MUST be updated to the latest version (Ver.1.5.0 or later).
When using with Windows 8: When the Windows SmartScreen is displayed upon installing the driver, please perform the following procedure:
1. Click [ More info ]
2. Click [ Run anyway ]
* Skip Step 1 If your PC is not connected to the internet.
Hope that helps
EDIT 2:
The firmware update instructions are included in a .pdf with the
OCTA-CAPTURE System Update Version 1.51 download/ The .pdf is OCTA-CAPTURE_v1.5_Functions_e02_W.