Vario Password - mind of its own

[Guest Honest John]

Has anyone else had this problem?

When I got the Vario, I am sure that I set the password to come on if I didn't use the device for 12 hours. (I can't be bothered with having to set the second phase every time I use it as a phone).

But it comes on at random times, or so it seems. I come back to the device after half an hour and it asks for my password. It then doesn't ask the next time, say in an hour. Then it does again.

I have actually had to disable it as I get fed up with its inconsistency.

Is it me or has anyone else had trouble?