Mechanisms for a messaging application program (e.g., an e-mail or instant messaging application program) to render information on a display. A server may download different template sets (or the client may otherwise access such template sets) to different client computing systems. Each template is usable by the messaging application program at the respective client to render a display screen in accordance with the display capabilities and/or the user display preferences and settings of the respective client computing system. The messaging application program is allowed to stay the same, while variances due to different display capabilities and/or user display preferences and settings are accommodated by the different template sets.