ADAC-X Unable to edit or create features

Hi,
I am a new user to ADAC-X using windows 7 64 bit machine.
I used it sucessfully for 1 project but since then have been unable to use it since I cannot create a feature or edit one due to the menu being greyed out.
Is there any idea at what may be causing this issue?
I have already ununstalled Bricscad and ADAC-X and reinstalled to no avail.
Cheers,
Rebecca