I have re-installed all drivers, swapped monitors, tried different USB ports, checked for power, etc. The light is on, but the screen is black
Thanks for posting, and thanks for double-checking those things – it sounds likely to be a hardware problem. If you could email us your amazon order number and debug file (here’s how: http://plugable.com/support/plugdebug ), we’ll be able to confirm and get a replacement unit out to you right away. You can send to email@example.com.
Thanks for your patience!