OK, I figured out that you can edit the settings.txt on the zen partition, it lives in the bin directory. Pico looks to be the editor to use but its causing me some problems. (I'm not a linux person by the way).
How exactly do I save the modified file using pico. I did a search on the web and apparently ctrl+x will exit and give me the chance to save the file but all that happens is at the top of the editor it says MODIFIED and I cant figure out how to exit pico from there.