Error: Unable to write data to locked layer: ???

Do you get this error when opening a drawing file in Land Desktop?
Background Info:

A block named "ADCADD_ZZ" gets inserted by LDT into the 1st layout tab. This block includes information about the name of the project (database) that the drawing is attached to and the drawing setup information.

Solution:

- Change the "ADCADD_ZZ" block layer to Zero (0) and/or unlock it's layer.

- Since you can't select the object with a mouse you have to use something like Quick Select to grab it to change its layer.

How to repeat this error:
- Create a new file using Land Enabled Map.
- Lock the current layer then save & close.
- Open the same drawing using LDT and you'll get a message box with the Unable to... error.

Quick select is not permitted in perspective view

I grew some grey hairs on this one. Consider this post as my forwarding of information from this AUGI forum post. Mike.Perry posted this fix on July 22, 2004. Scroll down to his last response for the fix.

This also fixed my problem where I couldn't select objects to edit. Also if I regen my drawing they would disappear. I was ready to block my line work into a fresh new drawing file.

I believe you may view this post as a guest. http://forums.augi.com/showthread.php?t=6039

If you're not a member of AUGI you should be. There's a wealth of info here. Here's the link: http://www.augi.com/join/application.asp

Snippet:
Command: dview

Select objects or <>: Press Enter

Enter option[CAmera/TArget/Distance/POints/PAn/Zoom/TWist/CLip/Hide/Off/Undo]: PO

Specify target point <17741.51,>: 0,0,0

Specify camera point <17741.51,>: 0,0,1

Enter option[CAmera/TArget/Distance/POints/PAn/Zoom/TWist/CLip/Hide/Off/Undo]: Press Enter to Exit