QT Pro script error

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
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Operating System: Mac OS X (10.4)