PNG File attached to DEM

[Anonymous]

Every time I load a DEM file into Civil 3D Land Desktop Companion i get a PNG saving to my C:\ drive that doesn't actually load or do anything noticeable except slow my computer down.

When someone else opens the drawing on a different computer nothing is different and so these PNG files are really not needed but I can not seem to get rid of them.

I have tried to unload and detach in the xref menu and a few other things (nothing seems to work) I would like to see if anyone has a solution to stop these from being created when a DEM is loaded or how I can get rid of them.

Thanks