I am having a few problems with my newly aquired cabs monitor. I am not sure of the make / model, but the tube has a Phillips sticker on it and the cabinet is clearly marked Sega in several places.
On the Windows desktop, there is a bright white bar at the bottom all the way along. It also seems to be out of focus (the Start menu is too blurred to read). The rest of the screen is fine.
There also appears to be a semi circle on the right where it is usually dark, like the colour is inverted or something. WHen the screen should be green, it is dark purpley; and when it's red it is orange.


All help greatly appreciated.