Comment 32 for bug 441039

I had this issue as well on my laptop. It took me 3 fresh installs to get it working. This may not be any help, but here are the things I did different in the last install...
1. Had my laptop hardwired into the network throughout the entire install. I noticed that it would try to sync time and timezones with servers at the begining, and i didn't have it plugged in so it couldn't reach them.
2. I logged into my Ubuntu one account before I set up the client on my laptop and removed all the registered computers.
3. I was patient. It took a minute or two but it finally started syncing...

I hope the time sync thing helps in the resolution of this bug. In the past I have experienced all kinds of wierd bugs in Windows when the time was off...

Good Luck to you all.