Dandyman's questions

I recently backed up the home partition of my hard drive, using an Ubuntu LiveCD and GParted.

Now every time I navigate to the partition a little padlock icon appears in the corner of the file/folder, and the only way to access the file is to use Nautilus as the superuser.

I recently purchased a Bluetooth 4.0 adaptor for my laptop. Bluetooth 2.1 was recognised instantly, but Bluetooth 4.0 is not recognised. Is there a fix for this, or is Ubuntu not compatible with Bluetooth 4.0?

Is there a way of muting sound from my computer everytime I unplug my headphones (Like a phone does) to stop sound then playing out of my speakers?

I have recently upgraded to Ubuntu 12.04, and 2 new features that I have seen advertised on various websites are not on my version:

• Individual wallpapers on login screen
• Privacy options in 'settings'

Is there a way of getting these features, or have they just been removed?

P.S. I upgraded to 12.04 from 11.10 via the upgrade tool.

I have just reactivated the guest session in Ubuntu, because several people use my laptop on a temporary basis. I wanted to know if there are any security issues with using a guest session, and if this means someone could access my computer.

I am running Windows XP as a virtual machine through VirtualBox on Ubuntu 11.10. I have some USB devices (namely a video grabber & Android phone) that aren't recognised by Ubuntu. Will they be recognised by Windows XP if it is running virtually?

I'm having some problems with a multi monitor setup in Ubuntu:

1. The launcher will appear on the laptop monitor if the external monitor isn't plugged in on startup. If the external monitor is plugged in on startup it will appear on that monitor. Is there a way to make it consistently appear on one screen, or if possible duplicate the launcher on both monitors?
2. If a flash video is playing on the external monitor and I make it fullscreen, the video will appear fullscreen on the laptop monitor. Conversely once the video is made fullscreen on the laptop monitor - If you click on the external monitor it comes off fullscreen.

Does anyone have any solutions to these issues?

I wanted to switch over to Unity 2D because it uses less memory, however the exit, minimise, and maximise buttons aren't showing, with just a black bar. Also the running programs do not appear in the launcher - when they are launched they appear, flash for a bit, then disappear again. Programs pinned to the launcher, like Google Chrome, flash for a bit then return to normal, with no arrow indicating the program is running.

On the ubuntu system monitor there are different types of memory listed: Virtual Memory, Resident Memory, Writeable Memory, Shared Memory & X Server Memory. What are the differences between them, and which reflects the actual RAM usage of the process?

Sorry if it's a newbie question :)

My laptop, running Ubuntu 11.10, doesn't recognise that a battery is installed until I pull it out, then put it back in again. This presents a problem when I boot up from battery. Why is this?

I have installed Redshift on my computer and it works fine with the command gtk-redshift.

However, it would not start up automatically when using the same command in startup applications.

How do I set it to automatically start?