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In ArcMap, all folders in the Style Manager dialog appear empty. No new styles can be created, and no new symbols can be added to an existing style.

Libraries for Microsoft Access may not be properly registered. To test and determine if this is the cause open Microsoft Access and attempt to create a new Access database (.mdb). If a new Access database cannot be created, refer to the solution below.

1. Click Start > Run and register the following files:
   
   • dao360.dll
   • msacc.olb
   
   The paths to these files depends on the computer operating system and the version of Microsoft Office installed on the computer.
2. Here are samples of the possible locations for these files:
   
   • C:\Program Files\Common Files\Microsoft Shared\dao\dao360.dll
   • C:\Program Files\Microsoft Office\OfficeXX\msacc.olb
   
   
3. A sample of the command syntax to enter in the Windows Run dialog box is as follows:
   
   

   regsvr32 "C:\Program Files\Common Files\Microsoft Shared\dao\dao360.dll"

   
   The full path to the library location must be placed in double quotes because there are spaces in the path name.
   
   
    This may also be related to the problem described in Knowledge Base article 39798, in which the user is unable to open a personal geodatabase (.mdb), access data stored in the personal geodatabase, or create a new personal geodatabase.
   
   

• Desktop Help 10.0: A quick tour of symbols and styles