OK, I live in the UK and so I called my mobile operator (O2) because of the voicemail issue (see thread here: http://www.iphone4forum.net/forum/iphone-4-help-15/setting-up-voicemail-1890/#post17737). They said that I have to reset my Iphone and that this will resolve the issue. Before I do that I need to make sure that the following is saved as a backup: 1. Contacts 2. Text Messages received and sent - some are very important messages from clients as well as family etc 3. Photos and Videos 4. 18 gigs of apps and mp3 songs/lectures etc etc - not too bothered about these as I already have them on my laptop, but would save time and effort if they were restored automatically by Itunes. Can someone please confirm how I go about backing all the above so that after I do a complete reset of the Iphone 4 everything will come back (number 2+3 are extremely important data). Please advise ONLY if you actually know and have tried this yourself. Dont offer advise based on something you have simply read - I dont mean offence here, just that it is of utmost importance that I do not lose the data. Many thanks.