I get this message when I try to open a new database. If I click help I get this message : "Could not open table 'MSysAccounts' in the workgroup information file. (Error 3173) This operation requires the System.mdw file, which contains the security and option settings for Microsoft Jet database tables. Possible causes: The SystemDB value of the \HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\9.0\Access\Jet\4.0\Engines\Jet key in the MicrosoftÂ® WindowsÂ® Registry points to a network drive that is not connected. Make sure the network drive is available, and then try the operation again. The System.mdw file is corrupted. If you have a backup copy of System.mdw, copy it to the location specified in the SystemDB entry in the Registry. " When I search my harddrive I can't find the "system.mdw" file anywhere. I currently have a database that I can use, but I can't open any other database, nor create a new one.