I am using AutoCAD 2007 SP2.
The proceedure to display toolbars is.
1. Click Tools menu » Customize » Interface.
2. In the Customize User Interface editor, Customize tab, in the Customizations In pane, click the plus sign (+) next to the Workspaces node to expand it.
3. Select the workspace that you want to modify.
4. In the Workspace Contents pane, click Customize Workspace.
5. In the Customizations In pane, click the plus sign (+) next to the Toolbars tree node, or Partial CUI files tree node to expand it.
Click the check box next to each toolbar, or partial CUI file that you want to add to the workspace
Problem no check box.
CUI is not read-only