Another problem with coreldraw 12 when i send anything even a simple shape to

Another problem with coreldraw 12 when i send anything even a simple shape to my laser tje laser juat burns a line backwards and forwards or just judders what have i done wrong any advice?

If you mean it’s buying twice then select object the change the stroke width to 0.025mm

Have you selected your control in the settings and input the serial number of the board in?