I have used draftsight for about 12 months on an irregular basis and it has been fine, but for some reason today it will not work. It loads up but I cannot even draw a line. I have used the Hotfix but nothing changes. I have also uninstalled and re-installed but the same problem occurs.

When it opens a message appears in the Command Window saying 'Unsigned add in. Export table add in. dll has been detected and will not be loaded. Only signed and authenticated add ins are permitted.'

I don't know what that means or if it is relevant to the problem.

I'm on Windows 10.

Can anybody help.

Thanks.

Kevin.