Problems with networks around the team airodump-ng

Hello. I am the first time in life I was dealing with a system of Kali Linux. Yesterday when I command: airodump-ng mon0 were visible all wi-fi network around. I turned off the computer and turned on today, began to repeat all that done yesterday and I see only one network that he was looking for a very long time. Help please, I am a novice and a little to understand the issue.
More would like to add. Now, when the system boots Linux, the window pops up asking for the password for the wireless network. Yesterday nebilo this window.
Kali stands on a Linux Virtual box.
picture link http://fotki.yandex.ru/next/users/be...68/view/565008
http://fotki.yandex.ru/next/users/be...68/view/565009
I hope you can see my pictures from the Russian hosting. Thank you.