[Zope] Any limit on number of users?

Hi, Has anyone run up against a limitation on the number of users that can be in one acl_users folder? Either a hard limit or a practical limit? -- ................. paul winkler .................. slinkP arts: music, sound, illustration, design, etc. web page: http://www.slinkp.com A member of ARMS: http://www.reacharms.com