Same exact problem, Back In Time issue and workadound as Miguel Prada's above. I am on Ubuntu 12.04 32 bit, updated to the latest packages this morning at ~ 9am BST.
Linux 3.2.0-27-generic-pae #43-Ubuntu SMP Fri Jul 6 15:06:05 UTC 2012 i686 i686 i386 GNU/Linux
Same exact problem, Back In Time issue and workadound as Miguel Prada's above. I am on Ubuntu 12.04 32 bit, updated to the latest packages this morning at ~ 9am BST.
Linux 3.2.0-27- generic- pae #43-Ubuntu SMP Fri Jul 6 15:06:05 UTC 2012 i686 i686 i386 GNU/Linux