After moving some of the subfolders (about 80) into a single subfolder then I was able to browse the folder normally.
Please note that I have set nautilus' preferences up so that, under the 'Preview' tab, everything is set to 'always'. Also, I have set the 'Only files smaller than:' property to 10Mb. Also, when connecting to the share with smbclient (thanks Sebastien) I got this error: smb: \Sales\> ls Server packet had invalid SMB signature! listing \Sales\* Error in dskattr: Server packet had invalid SMB signature! -- Hardy Heron: Nautilus fails to open directory with more than 140 subfolders https://bugs.launchpad.net/bugs/217137 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs