I know that it's frustrating but what you need to do is open a terminal and type sudo gedit \etc\modprobe.d\alsa-base.conf
What that does is to give you administrator privilages so after editing you can actually save the file. You can see that indicated with an asterisk in the title of the window.
If you want my opinion, it is a shame that there is no graphic UI function around that.
Hey russellfields!
I know that it's frustrating but what you need to do is open a terminal and type sudo gedit \etc\modprobe. d\alsa- base.conf
What that does is to give you administrator privilages so after editing you can actually save the file. You can see that indicated with an asterisk in the title of the window.
If you want my opinion, it is a shame that there is no graphic UI function around that.