Cannot connect to sftp locations

What I did: Using Nautilus - File > Connect to Server
What I expected: to fill in the server/hostname information
What happened: Error message -

Can't load the supported server method list.
Please check your gvfs installation.

Also in Nautilus, choosing an sftp location from Bookmarks (which previously worked and continues to work using Filezilla) gets the message "Nautilus cannot handle "sftp" locations.

Pasting in sftp://hostname.com/www/ under Go > Location gets the message "Could not find /home/me/sftp:/hostname.com/www"

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gvfs 1.14.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
ApportVersion: 2.6.1-0ubuntu6
Architecture: i386
CheckboxSubmission: 23f9165fb5269142dfde45beba11cbff
CheckboxSystem: edda5d4f616ca792bf437989cb597002
Date: Sat Oct 27 06:22:18 2012
InstallationDate: Installed on 2010-10-21 (736 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MarkForUpload: True
SourcePackage: gvfs
UpgradeStatus: Upgraded to quantal on 2012-09-23 (33 days ago)