Searched quit a bit for this. So I used the drivers provided with the product. Screen kept on flashing and no connection was made to my 3th monitor (the one connected with the usb-device). I found a solution that may work for you aswell:
FIRST:
1. Go to task-manger and look for the process "Windows usb display (32bit)".
2. Right click the task and select "properties".
3. Go to "compatibility".
4. Select "Change settings for all users"
5. Set it to execute in compatibility with Windows 7
6. Set it to run as administrator.
7. Apply changes, close this window (now you're back at task manager), and terminate "Windows usb display (32bit)"
8. Go to start and start "XXX Usb Display" (should start as admin now)
This will seem like nothing has changed, still the same problems.
SECOND:
2. Go to display-options of windows. There should be the same amount of monitors there as are on connected to your pc, including the one connected with the usb-device.
3. Press Windows-key+P. A pop-up will appear about duplicating screens and stuff. Select "Only display main monitor".
4. All your screens are black now except the main monitor.
5. In the Display-settings-window, select the monitor connected with the usb first and select "extend screen".
6. Do the same for any remaining monitors.
Hope this helped anyone out!