Installing the x86_64 binary on Xubuntu jaunty gave this error
Code:
Setting up bash completion...
____________________ WARNING ____________________
Setting up completion failed with error:
__________________________________________________
Traceback (most recent call last):
File "/home/kovid/work/calibre/src/calibre/linux.py", line 176, in setup_completion
ImportError: cannot import name titles
Calibre seems to run OK - at least so far!