Recently, i've been having some big problems with my Macbook Pro. I've been getting warning messages about the "start up disk" memory being low, and warning me to clear space. So I deleted about 20 GB worth of photos and music. Within a week I got the same message again. Keep in mind I had not downloaded anything in that time frame. I've been thinking of just wiping the computer and backing up my files on an External. Would this be the best course of action to fixing my computer? Thanks in advance for your help!