Cpu meter run high even when stopped

Hi im running logic 9. even when stopped the cpu meter run high, even peaking at times. I have made sure all other apps are closed while running logic. Dont know what the drain is? Please help...

Do you have a virtual instrument track selected?
Try selecting an unused audio track with no plugins and see if the useage goes down when idle.
Logic usually processes all plugins for current input on one core, which can max out your cpu.
You can also try increasing your process buffer.

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              > >> verified that it is WLS causing the CPU activity (using "top" on Solaris
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