For some reason when opening an eps file with Illustrator (CS5) it opens Illustrator but nothing is there. There are no messages it just does not open the file. We have tried creating a new eps file and opening that and the same thing happens. The eps files do not open in photoshop and acrobat so I don't think they are corrupt. This happens with all eps files not just a few in particular. The only change that was made to the system is that we loaded a new printer and drivers - Xerox ColorQube 8570DN. I don't see how that would affect it.