OK, so after having to do a clean install to upgrade from Gutsy to Hardy, and thereby losing all my downloaded packages and customizations, I have thought that the wiser thing would be to record all the changes made to the system.
FIRST: the most important thing: The spinning hard drive.
Never forget that your hard drive goes nuts. You've used it for a whole month with it spinning up and down every 5 seconds, so the life of the poor thing has been significantly shortened.
Here is the solution, you get it by searching "hard drive spinning up/down ubuntu"
Add startup script:
sudo gedit /etc/init.d/local_settings
Now add this:
hdparm -B 254 /dev/xxx
...whereas 'xxx' represents your hard drive. (personal note: xxx = sda)
Make it executable:
sudo chmod +x /etc/init.d/local_settings
sudo ln -s /etc/init.d/local_settings /etc/rc2.d/S99local_settings
Restart & the weird clicking sound should now have disappeared. Guess that's it!
THEN. I've tried to make the backspace key work. To do this, had to type
in the address bar of the browser. Then search for ‘browser.backspace_action’ and change its value to 0 (zero).
NOTE: the default value was 2.
That's it for the moment,Now, if only I can remember how to install compiz-fusion and awn-bzr, maybe I can showcase the gorgeous icons I've downloaded...