Dual-layer 1,67 CPU scaling working? Technical experts welcome.

Hi,
I have done a pretty simple test using an application called "Reaktor". This is a music application which uses quite a lot of CPU.
On my new Alubook Dual Layer 1.67 GHz one of the instruments doesn't even play. The application CPU meter shows "over" , indicating a CPU overload.
On the previous generation 1.67 (non-DL) this instrument registers 70% CPU use. With the energy saver processor settings on "automatic" or "highest", the instrument still plays.
The only reason I can think of for this is the change from user managable processor settings (energy saver) to dynamic processor frequency scaling.
My question is this:
Is it possible that the new powerbook can make a mistake in recognizing when to scale the CPU to 1,67 GHz? If so, would this be an issue with the application (programming) not supporting this new technology or more a Powerbook architecture issue? Has anybody else run similar benchmarks?
I found this in another post:
The DL Powerbooks support both divide-by-two mode, AND, for the first time, divide-by-four mode. That is, the processor will set itself to 1.67GHz, 833MHz and 417MHz as needed for the particular task at hand. There is no user control over this switching; it is automated. Previous Powerbooks with 7447 processors have simply supported divide-by-two, e.g. 1.5GHz or 750MHz, with the user having the option to choose 'highest', 'automatic', or 'reduced'. The source for this information is the developer notes on the Apple Developer Connection website.
Having read this, I would assume that in the divide-by-four mode, the CPU is being run at 1.25 Mhz, but should be run at 1.67.
Any other observations / explanations would be appreciated.
Thanks,
Dan
G3 300 Mhz Gossamer DT   Mac OS 9.0.x  
G3 300 Mhz Gossamer DT   Mac OS 9.0.x  

hello sir,
i want to your help
i was installed fresh windows 7 via cd rom and then after installed all software.
and now after 1 day customer complained me that cd rom not read any cd and i m also check when i insurt cd so its not read and when i am double click on cd rom icon its eject so what i do for that please reply on my email address.
[text removed for privacy]
VIMAL

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