IS THER ANY SETTING TO SEE AUTOCAD FILES BLACK AND WHITE. I MEAN AT PRESENT WHEN I OPEN THE FILE, COLOUR LINES IS DEFAULT. I WANT TO BLACK AND WHITE AS A DEFAULT. THANK FOR ANY COMMENT.
This belongs in the AutoCAD forum but for brevity:
Depending on your version, this might work:
In the Page Setup dialog box, under Plot Style Table (Pen Assignments), select the Display Plot Styles option. Click OK.