this article seems to have disappeared from apple database
it may help me to resolve a problem: impossible to copy or paste, or to move anything on the desktop
thanks for your help
Try this one: http://support.apple.com/kb/HT1710. If that's not the one, include a subject or title the missing one was dealing with.
re-installed the original System, and downloaded all updates (more than 1Go with a slow ADSL, <1Mo/s)
this needed 5 days
and now it works fine
Retrieving data ...