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Hi guys, I am a newbie to this forum and am not a techi but am willing to listen and learn. I recently updated to itunes 10 (running nano 4th gen) and since then my computer has become a constant error message and my ipod has become a paper weight. Whilst installing I10 I get error messages saying could not open Key unknown\components\DA42BC89BF25F5BD0AF18C3B9B1AEE8 verify that you have sufficient access to that key. I searched through the support forums and did everything that was advised to confirm access etc. I tried to reinstall but got the same message again followed by "Apple application support not found" and then "the program can't start because core foundation.dll is missing from your computer". Again searched the message boards and tried everything suggested but with no luck. Ok i said to myself - I need to rollback. I managed to install itunes V8.2.1.6 When i go to open it i get 2 messages come up that state "The program cannott start becuase ASL.dll is missing from your computer" If i click ok on both message and then try to open itunes again it will open. PHEWWWWW. However, Now I cannot sync my ipod. Itunes will recognise it, if I try to do a restore I get the message "The ipod could not be restored, An unknown error occured (1436)" The only help I can find for this is to update to the latest itunes (which I cannot because of he above). I have done a reset on the ipod both please run it from disc menu but with no luck. I have downloaded Songbird but this software is not recognising thew ipod. Does this mean I not only have software issues but also my ipod really is just a colourful paper weight. Any and all suggestions welcome. Thanks in advance