Hi Scott,
This issue could be caused if the device drivers were not installed properly or if the driver files are corrupted. I would suggest you to try these steps and check:
Method 1:
You have mentioned that the driver installation program didn’t work. This could be caused if the driver file is corrupted or damaged or if you didn’t install it the right way. To make sure that you have a working version of the driver, select Windows 8 as the operating system and download the driver files from this link:
http://www.lg.com/us/support-product/lg-GP40NB40#
Once you have downloaded the driver files, click on the “view more” option below the download link and follow the exact procedure suggested there to install the driver.
Method 2:
If the above steps didn’t help, then I would suggest you to run the hardware and devices troubleshooter and check. This built-in troubleshooter can detect and fix most of the errors related to devices. Refer to these steps:
a) Press Windows key +X, select Control panel.
b) Change the view by option on the top right to Large icons.
c) Click on troubleshooting and click on the view all option on the left panel.
d) Run the “Hardware and devices” troubleshooter.
You can also refer to this link for more information:
http://windows.microsoft.com/en-us/windows-8/what-device-isnt-installed-properly
Hope this helps. Please get back to us with the results if you need any further assistance.