Itunes 11.0.2 has started stuttering during playback on my laptop, with no other applications open, Intel P6100 processor, 3GB Ram, and yesterday lost my entire library, playlists, the lot and had to retrieve it from a backup losing around 2 months of work on my library. The stuttering starts at the beginning of playback when the library file is being altered to register playcounts, and is leaving loads of temp files in the itunes folder which is something its never done before also. Going into windows task manager and changing the priority on itunes.exe to high seems so semi cure the stuttering playback, but was running it like this when the library disappeared so cannot be a permanent fix as I've never had to do it before. Reading around the web it's like itunes is struggling to update the database file as it may have been corrupted somehow - if that's the case what do I do? Re-installing won't cure the problem as I'll still retrieve the same backup files to preserve my playlists (60+), star ratings (every one of my 13500 songs are rated), etc. Never had this problem in 10 years of using itunes, seriously hacked off!