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Quicktime isn't working

Time:December 10
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I had to start my computer with the disc.  I elected to reinstall everything and had my old files put in a previous system folder.  First I couldn't open itunes because it was a older version.  then i copied it from the previous system folder.  Then I tried again and error message said I need quicktime 7.5.5 version.  I download it from apple.  But it will not allow the controls to open or play songs.  There is a brief message when I restart but I can not read that fast.  Can anyone help.
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Let's try installing a QuickTime 7.7 for Leopard using a .dmg installer downloaded from the Apple website:
http://support.apple.com/kb/DL761
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