Can't change model background

I just recently downloaded Draftsight V14 and it will not let me change the model background to white. I watched the setup video and tried to follow along, but it would not change colour when I hit the OK button. I am running Windows 7 and downloaded the 64 bit program.

It also does not draw a line when I click on the line tool.

 

Any assistance you can give me would be appreciated.

 

Thank you,

 

Dennis 9412