Autotcad 2004, there's an item that appears, maybe a small box or line that disappears when I zoom in.  I cannot select it.  My layers are few and clean, I've exploded the entire drawing 10 times, there is nothing I can select in the drawing that it's a part of.  I cannot get rid of it - I don't know what it is or where it originated.  Anyone seen this before??

oh, I saved the dwg out as different filename, deleted everything in the dwg, purged, and they're still there!

Maybe it's a geolocator.

Copy/paste everything in a new(clean) drawing and see of this helps.Maybe you can post a screenshot ?RegardsRon

uploads/5081/1.dwg Here it is...zoom in and out and watch the ghost come and go.

No ghost when i zoom in and out mmm.i tried it in acad 2013 and 2018......Perhaps it is a bug in your autocad.Did you try to copy paste your drawing into a New fresh drawing?Can you take a screenshot from that ghost object so we can see what it looks like?

Don't know about a bug, but it may have to do with it being an antique version (2004) :)

I doubt very much that the problem has do to with the fact that the drawing was done in AutoCAD 2004.  I've opened drawings created with even earlier versions, like Release 9 (not to be confused with AutoCAD 2009), and haven't encountered any such similar mysterious objects. 

haha...facetiousness...

looks like a dead pixel lol