Somehow, my Ubuntu 12.04 LTS running in VirtualBox 4.1.18 (W7 Host) got stuck.. and I closed the machine.

Now when I start up the VM again, it reverts back to my last snapshot which is more than 20 days old. Fortunately I have a quite recent backup of my important data, but still, this is very annoying.. What could the problem be and is there a way to get my data back?

closed as off topic by Takkat, Scott Severance, Tom Brossman, hexafraction, jrg Sep 28 '12 at 13:55

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It was my fault - there is an option when closing the VM which gives you the possibility to revert back to the last stable snapshot - and I had it enabled, for some weird reason.

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