Not sure how to proceed. Computer got virus last month and had to completely reformat computer from Vista to Windows7. Had to reinstall everything and now when I went to sync my iPad, iTunes told me I was not authorized on this (reformatted) computer. Did not have a back up of iTunes. I re-authorized this computer to make it valid but if I sync my iPad with it, it looks like I will lose everything. Does anyone know how to get around this without losing ALL my data?? I have DiskAid but don't how best to use it (just got it and am thinking it will only work for my music which I have little of - more concerned about my data). If you know what to do/how to solve this problem, please help. Thanks in advance.