Hi Link, welcome back to Linux Mint
Just a heads up, Linux Mint 11 has reached end of life as of October last year. Meaning you are no longer receiving updates for your installed software (no security fixes) and it will become increasingly difficult for you to install new software as the software repositories will be shut down. Recommend you upgrade to Linux Mint 13 at least. You can download Linux Mint releases from http://www.linuxmint.com/oldreleases.php
and see also till when those are supported. Linux Mint 15 is due to be released in May.
If you are using the main edition of Linux Mint 11 (GNOME 2), you will probably be at home with MATE or Cinnamon. GNOME 2 has been discontinued by the GNOME developers, but the MATE developers have picked up where the GNOME developers left. So under the new name MATE (all applications also have new names) you can continue to use your familiar desktop environment. Cinnamon is being developed by the Linux Mint developers, striving for the same classic desktop paradigm though with using modern technologies.