Comment 1 for bug 518460

The string number is #242, this issue of cause also affects string #243:

Find the <guilabel>Folder sharing service (samba)</guilabel> and ensure that the checkbox next to it is checked. If it is not checked, press <guibutton>Unlock</guibutton> and enter your administrative password. Press <guibutton>Authenticate</guibutton>, then enable the Folder sharing service.