Final Cut Studio 3 - Serial/Installation Issue

Hi everyone! I'm having an issue with installing my copy of Final Cut Studio 3. Everything works fine and then when I get to Serial Number/User Information screen I enter all the information and then I put the serial and hit the "Continue" button, but the button fades away and is unclickable (picture).
*I removed my information for privacy and not to give away my serial.*



Please help me. Thanks!

Make sure you enter the serial number, just like it is on the card. If you have, you may want contact Apple to make sure the serial number is valid.

rman said:

Make sure you enter the serial number, just like it is on the card. If you have, you may want contact Apple to make sure the serial number is valid.

Click to expand...

I did, but nothing is working. I have a volume license that I bought, and it works on the other 3 computers I already installed on, but not this one. It won't work for another one either. Apple says it should work just fine.

You'll need to call Apple if your license key isn't working.