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Previous research has shown that alphasliders are an effective tool for searching an alphabetically sorted list when only limited screen space is available for the graphical user interface. To improve user satisfaction, we propose equipping the widget with a novel text filter to dynamically limit the slider range. In this way, users are supported in locating target items and in identifying records that are missing. The results of a comparative user evaluation run on a personal digital assistant showed that 8 out of 12 participants preferred the filter widget to the classic interface. We further suggest an enhanced alphaslider design to speed up user interaction.