The override path mailbox database location is missing from properties of a Mailbox server | Information Store Tab
Feature no longer available in versions 6.10.1 and above
Or
Windows Text Size is set to anything but the default (Smaller - 100%) E.g. Windows Text size set to Medium - 125% causing the text from the Properties of the Mailbox Server information store to be cut off.
Change the Windows Text size back to the Default (Smaller - 100%) if this feature is required on any version prior to 6.10.1.