This behavior may occur when your machine has the mother board graphics card IntelR and your the external e.g. NVIDIA are both enabled on the machine , and the IntelR card is out dated. to confirm and resolve the issue , you can try the following:

1. close all DraftSight sessions

2. go to Device Manager > Display adapters > right-click IntelR >Disable

3. start DraftSight , see if the issue is resolved , if yes , this means DraftSight is using IntelR graphics card , especially if it is the default graphics card. by disabling the card you forced DraftSight to use the NVIDIA card.

4. close DraftSight again

5. go back to Device Manager > Display adapters> right-click IntelR >Enable > right-click IntelR>Update Driver Software..

6. After the update is finished , start DraftSight again and the issue should be resolved.