Hi,I just opened my drawing file and I have all these crazy lines all over it that I cannot delete. I have lines everywhere!I don't know what to do.

Did you try refreshing the display?

Please see this tip:CAD Forum - Random lines are displayed over my AutoCAD drawing.

I am working on a 3D drawing and I find that some items move after saving the drawing. I see the item that has moved but I cannot select it. In the position where it is supposed to be I can select, but it shows dotted lines and the moved item can then be moved but not repositioned. It is driving me nuts!  Can anyone assist please.I am using Autocad 2014.Thanks.