This paper examines problems persons with deafblindness have when using computers and it analyses how we can approach these problems in the redesign of a communication tool. A qualitative interview and observation study was conducted with 12 participants. The results indicate that future systems must improve simplicity, flexibility, and feedback. Our redesign employs a use flow for the screen reader that provides precursor cues for reading on a Braille display. This is intended to aid users getting an overview of the program and its functions. We discuss the advantages and problems that arise when implementing this concept to operate both on a visual display and a Braille display.