AutoCAD Map 3D 2009 does not support connections to ArcSDE data sources running on the Windows 2000 operating system.
If you import an SDF file that you created by exporting DWG data to SDF, you may need to map the feature layers to drawing layers manually. Although the entries in the Import dialog box may look correct, the import operation may prepend schema names to each layer name. To resolve this problem, select each incoming layer name in the Drawing Layer column and manually select the appropriate drawing layer for that feature.
Connecting to Oracle on Windows Vista
You cannot connect to an Oracle database from a limited user account in Windows Vista. To connect to an Oracle database in Windows Vista, log on to AutoCAD Map 3D as an administrative user.
Moving Drawings Between Systems
If you want to move your drawing from one computer to another, make sure that you have checked in all your features. If you do not check in all your features, AutoCAD Map 3D will not be able to populate the feature cache on the computer to which you have moved your drawing.