If you use Ubuntu as a dual-boot with Windows Vista, you will notice that NTFS partitions are not directly accessible when you log on, but you need to open them first and enter the password to mount them. However, there is a simple method to automate this process without going through the command line!
Under Gnome, open the menu System then Administration. Here, click on the module Synaptic Package Manager then enter your password.
Search then pysdm in the search field.
Right click Select for installation. Wait a few moments and then go back to the menu System, Administration and now click on the module Storage Device Manager.
Unroll the different partitions and then validate the warning message when you click on one of them. Do this for partitions to be mounted automatically at the start of the session.
Note that the message will not appear for the system partition containing Ubuntu.
To confirm the operation, click on the button Apply then on Close.
At the next startup, your partitions will be instantly accessible and without any password input! A good way to enrich your Linux user experience. Too bad it is still not possible to read ext4 partitions on Windows...