This thesis consists of fundamental research into the effect that a display’s overall density has on a user’s performance and preference while performing simple tasks using a window-styled computer application specifically developed for this study. This study sought to reevaluate previous findings by exploring their application in the more current, present-day environment. In this research, overall density was considered to be a measure of a screen’s complexity and was examined at three different levels. Users performed a series of tasks using only one of three available screens with different density levels. The same tasks were performed by all users to determine if different density levels exhibit any effect on the user’s performance (as measured by completion time and accuracy) or preference. The outcome of these trials demonstrates that overall density and complexity play an important role in a user's performance and acceptance of a screen.