Alt+Tab Switcher effect Not Working In Ubuntu

Recently I was met with an issue after taking usual updates in Ubuntu.Normal Alt+Tab behavior would not work as it used to and that made my laptop completely unusable.

After looking through so many forums, I realized many people have faced the same issue.

If you face the same issue, below is how to get rid of it, temporarily.

1)Install Gnome shell in ubuntu 11.10 as below.

sudo apt-get install gnome-shell 

2) Logout from the existing session & select GNOME from the login Screen as below.

 

3) Once you log in you will get below desktop.

4) It will have some nice user friendly environments as below.