EDIT: never mind, I found the answer.
Hi, Linux Mint people. I'm coming from DOS/Windows, giving Linux a try (and liking it so far).
I've checked the stickies and searched the forum, but the problem/solution isn't found: when trying to install ATI drivers via the command prompt (using 'sudo'), the terminal doesn't allow me to enter the password. It shows me [sudo] password for me: and not even one character can be typed in. All I can do is cancel the operation as it then gives me a Conversation error. What now?