Nokia has also released v400.34.011 firmware for the diminutive E51, bringing "improvements and increased stability in Mail for Exchange and SMS reception". It also "improves stability and usability for VoIP and WLAN" and "robustness improvements when pressing the Home key". 'Stability improvements' and 'Robustness improvements' are of course Nokia speak for fixing bugs(!), but we're not complaining. Do note that the E51 is old enough not to have User Data Preservation, so do a full backup to memory card before using Nokia Software Update and then restore again afterwards. And make a note of any critical email or application settings - you know the drill.