Comment 44 for bug 562027

I've reproduced this on 4 different systems (32bit and 64bit), so confirming it and I am raising it to importance high because it fits these criteria, IMO:
# Has a severe impact on a small portion of Ubuntu users (estimated)
# Makes a default Ubuntu installation generally unusable for some users

I can see several possible problems caused by this bug that match the above criteria:
1- Data loss (when a user forcibly powers off the system as there is not alternative)
2- Privacy problems (when a user can't logout)

Workarounds:
1- Do not use QuickStart at all. The rationale for this is applications and documents open faster anyways the second time they are invoked, which is QuickStart's goal, which makes it redundant and possibly irrelevant.
2- Exit QuickStart each time before logout/restart/shutdown. Although inconvenient, this works.
3- Using CTRL-ALT-L to lock your screen instead of logging out. Other users can then enter a new session without your session being exposed or lost

As with every other bug report, unless you have constructive comments leading to resolve this or contribute significantly to it, please don't comment. Use the " Does this bug affect you ?" link at the top of this page instead of adding "me too", and subscribe to the bug as it's now confirmed, invite other people to do the same on your blog, microblog, etc. which may also help when the time comes to test any possible fix.