Hi, I have had Draftsight installed for a couple of years now and I believe it worked offline previously.

Occasionally I have to look at drawings on my laptop at home or away on site

Recently I updated to V1R5.0 and I am unable to open Draftsight. I get a message that activation is required.

I have uploaded V1 R5.1 and the problem remains.

I found the original activation email and clicked the link on there  and received an confirmation email to say

program was activated, but of course DS will not open offline.

I am sure it opened previously.

Windows 7 pro 64 bit

Any ideas?

Regards

Steve Large