QT Pro script error (reposting, please help! ;)

I’m running the latest version of QT Pro and using QT Player Scripts (downloaded from Apple’s site). Since my upgrade to Tiger (i think that’s the difference, anyway) I am getting a scripting error when trying to “add a chapter at current time” to the chapter track. I am able to create the chapter track but not able to add the chapters via scripts.

The error i’m getting is: NSReceiverEvaluationScriptError: 4

Can anyone help with this? I have a product due to clients that i use this for and i’m kinda freaking out…


Model: iMac G4
Operating System: Mac OS X (10.4)