My key deletes itself.

[Robotboy-2000]

I don't know why, but sometimes when I open blockland, it is in demo. I have to retype the key. This happened 3 times already.

Please tell me why.

[Ad Bot]

[Scream.]

It does it to me too... It's no big deal.

[KoopaScooper]

I've experienced this problem in the past.
Reinstalling did the trick for me, it might be related to RTB, although I'm not %100 sure.

[Badspot]

A: Blockland does not have write permission to it's own folder and therefore can't save your key to disk.  

OR

B: You are adding or removing a network adapter, which makes Blockland think it has moved to a different computer.  This can happen from connecting a laptop to a docking station for instance.