unity launcher 'auto-hide' gets pointer stuck between screens

[themusicgod1]

Similar to #1095854 and #970038 (and quite possibly the same bug?), when 'auto-hide' is enabled, if I try to move my pointer to the left hand of my first screen(ie where the launcher is), it only comes up sometimes, and very haphazardly, whereas(and here's the bug:) if I move towards the right(ie towards the other monitor) it usually gets 'stuck' at the edges of the two monitors. Sometimes the pointer is allowed to go through, and I can 'force' it back to the correct screen by alt-tabbing to a window on the correct monitor, and then alt-space -> move.

Turning off the launcher auto-hide option makes this symptom disappear immediately.

Ubuntu 14.04

themusicgod1@snowden:~$ !!
apt-cache policy unity
unity:
  Installed: 7.2.0+14.04.20140423-0ubuntu1.2
  Candidate: 7.2.0+14.04.20140423-0ubuntu1.2
  Version table:
 *** 7.2.0+14.04.20140423-0ubuntu1.2 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty-updates/main i386 Packag
es
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main i386 Package
s
        100 /var/lib/dpkg/status
     7.2.0+14.04.20140416-0ubuntu1 0
        500 http://ca.archive.ubuntu.com/ubuntu/ trusty/main i386 Packages

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.0+14.04.20140423-0ubuntu1.2
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: Unity
Date: Wed May 7 12:23:20 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-03-28 (40 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta i386 (20140326)
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)