Checking the OpenGL Drawing Mode

Graphics Card Hardware does not always support the drawing model that PolyCAD uses. To check this:

1. Create a polyline (Create -> Polyline)

2. In the graphics window, Click and drag to draw.

If the "Rubber Banding" is smudged across the screen as shown above:

3. In PolyCAD Options in the Attributes panel, to System Options.

4. Change the "Resolve NVIDIA Double Buffering Problem" box.