just upgrade snow Leopard, now FCP doesn't work - Help.....
Use Digital Rebellion's FCS remover to delete your complete installation of the final cut studio suite.
Reinstall the complete suite from the original disks. Do all the updates. Be happy.
before you do as studio x suggests, you might try deleting your fcp preferences (a lot quicker).
And you should always have a bootable clone of your startup drive BEFORE you do any upgrading of OS or Apps.
Retrieving data ...