Thanks for jumping in. I see that umaneulc has changed his post from pen to USB video adapter.
@umanuelc: I have one by a different manufacturer. I presume that there is software to install. Did you install the software first? If not, do so. Then plug in the USB adapter. Connect the video machine and turn it on. Then open the program and check the settings to see if it detects the adapter.
Did you search through this forum for other answers for the video adapter?