The new mount point since 12.10 is incompatible with Wine apps. Basically a right click>open with will fail because of invalid characters. Same with File>Open dialogs.
Example invalid mount point:
/var/run/user/username/gvfs/smb-share:server=192.168.0.1,share=public
That is annoying when Office 2010 is needed to open/edit a file that LibreOffice don't render properly (Yes, that happens)
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: gvfs 1.14.0-0ubuntu6
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Wed Nov 7 17:43:00 2012
InstallationDate: Installed on 2012-10-31 (7 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
SourcePackage: gvfs
UpgradeStatus: No upgrade log present (probably fresh install)
Status changed to 'Confirmed' because the bug affects multiple users.