We received a drawing from our client and it has a little red circle on 0,0. You cant select it. Turned off and froze all layers and its still there so it's not on a layer. It's in model space. If you x-ref the drawing into a sheet the circle does not come with it. It does not show if you try printing that area.
If you orbit the drawing into a 3-D view it's actually an arrow pointing straight down at 0,0 in the Z-Axis. If you zoom in or out it always stays the same size. It appears to just be a visual mark that you cant do anything with.
I attached a couple screen shots for reference.
It doesn't seen to be causing an issue. Let me know if you have any idea what it is.
Thanks!
Rob Greenwald