I am booting Ubuntu on a mac off of a USB drive. When I start it up there is a black screen giving me the options to try Ubuntu, install Ubuntu, or 2 other options. I select try Ubuntu and four GUIs show up, one for each corner of the screen. The color in each is relatively faint and the words are unreadable. Is there a clear way to fix this? Thanks for the help.
iMac, Late 2009; Intel Core 2 Duo Processor, 4gb ram.