For about three months, I've been toying with FCP Studio 2 on another one of my systems and final bought a second license. The deal is, I really don't want to uninstall the entire package simply to change the serial number - Does anyone know a way (like deleting prefs) which would require me to enter my new Serial Number?
Please save me the hassle of installing 5 DVD discs.
Thanks,
-C

its probably easier re-installing than wait on the phone for apple support to find out the answer.

Yes, there are a couple of hidden files that need to get deleted (at least that's how it used to work). They are in the System/Library/Application Support stuff somewhere.

If you use terminal, you can use the 'ls -al' (without the quotes) to see the hidden files and info about them. 'cd directory_name' will change directories for you (cd and ls are the mainstay of the terminal if you're unfamiliar - Change Directory and LiSt). If your directory names have spaces (like "Application Support"), either escape the space with a backslash (above the return key on the right side of the keyboard - the other one that everyone calls the backslash is actually the forward slash -- so annoying ;) ) or encase the name in single quotes... example:

cd 'Application Support'
or
cd Application\ Support

The 'rm' command will ReMove the file specified after the command, 'rm filename'...I prefer to move it to my desktop just in case it breaks something 'mv filename ~/Desktop/' ... the ~ character is a shortcut for your home directory for whatever user is logged in, the forward slashes denote a subdirectory.

Specifically, I believe it's this one:

/Library/Application Support/ProApps/Final Cut Pro System ID

This was totally what I needed. All you have to do is move the Final Cut Studio System ID file from the desktop. Here is what the window says:

This was totally what I needed. All you have to do is move the Final Cut Studio System ID file from the desktop. Here is what the window says:

Geeks RULEXORS!