I have a problem with a video download panel in Opera browser. When I scroll a web page with the video download panel, it looks weird.

Please try to do the following:

1. Drag IDM download panel with mouse on windows title of Opera browser window (just above menu items).

Drag IDM video download panel on Opera title bar

2. Open "Options→General" dialog and press "Edit" near "Customize IDM download panels in browsers". Then check "Mini mode" option.

Select mini mode for IDM video download panel