Thanks for your advice. Please not that I wrote "grass" not glass, hence there is no floor at at all. I have not switched of any filters or default. The download was from http://imsidesign.com
Hi Johan,
Sorry about the mix up of "grass" and "glass". I will put my glasses on next time!! Actually I had them on so I can't blame that! If the floor had been glass the effect would have been the same anyway, as you would see the grass through it,
Steve has a valid point too that if the floor is set at 0 then the Terrain may cover it and prevent you from selecting it also, but by default the floor is set to +300mm (1 foot), so if you have only just got the program I doubt you would have changed that.
I suspect it is probably more than just settings also because you cannot insert floors or ceilings. Here Steve's point about the walls not being joined is important, because the auto floor would not appear and you could not add a floor or ceiling "By Room" or "By Perimeter" although you could still do it by "By Picking Points". Does "Floor by Picking Points" work? Does "Celinging by Picking Points" work? Anyway just make sure the walls do join.
You did not answer some of the other questions. What is the full version number? and Is it the Pro version?
Also did you try turning off the Hardware Acceleration - that is the most likely quick fix I suspect.
Also did you try swapping the Template and / or Catalogue? They will help narrow down the issue further, if it is not a HA / video driver issue.
Do you know what sort of video card you have? Does it have its own separate memory or is is shared? Shared types sometimes struggle with 3D programs.
Try those tests and let us know how it goes.
Allan