I have an Avermedia EB1304NET with 4 Sony IR cameras. Every so often I get a display on my monitor that says "record stop abnormal" and at the bottom "PRESS ANY KEY TO CONTINUE". It doesn't appear to interfer with the recording. I sent it back to the place I bought it and naturally they can't duplicate the problem.
Also, another problem arose today. I went into the menu to "video adjustments" and vertical lines appeared on the monitor. Looks like vertical blinds. They went away after a while also.....but they'll be back.
I can send more pics if you like