Last night I successfully dualbooted my macbook air with mac os and ubuntu. My mac os partition still works smoothly, but my ubuntu partition is having some issues. I've noticed them mostly in Firefox. For some reason some words on the page will generate random characters, and sometimes even stretch so it goes across my screen. I'm not sure the reason for this, so any help would be appreciated. I'm fairly new to this, so if any information on my computer is needed, I will be happy to supply it.