Hi,
You could try this:
Change the Default Drawing Folder
Each time you start AutoCAD, the last used paths in each particular standard file selection dialog box are remembered across AutoCAD sessions. Alternatively, you can configure AutoCAD to always default to a particular path by changing the default drawing folder.
To change the default drawing folder
Set the REMEMBERFOLDERS system variable to 0.
On the Windows desktop, right-click the AutoCAD icon. Then choose Properties.
Choose the Shortcut tab.
In the Start In box, enter the path of the folder that should be the default when you open or save drawing files.
Choose OK.
REMEMBERFOLDERS Controls the default path for the Look In or Save In option in standard file selection dialog boxes
Regards,
Tom