USB port driving too much power.....error

hi there i m proud owner of this computer:
Model Name: MacBook Pro
Model Identifier: MacBookPro1,2
Processor Name: Intel Core Duo
Processor Speed: 2,16 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 2 MB
Memory: 2 GB
Bus Speed: 667 MHz
Boot ROM Version: MBP12.0061.B03
SMC Version (system): 1.5f10
Serial Number (system): W863607ETJ1
Hardware UUID: 00000000-0000-1000-8000-0016CB98D696
Sudden Motion Sensor:
State: Enabled
I ve upgraded my MBP to SL and since 3/4 days ago i ve been experiencing problems whit the USB port. A nice "error window" pop up saying that one or few USB port is driving too energy and therefor will be shut down. The error continued to pop again many times, sometimes 5 of this windows pops up simultaneously. Yesterday i took a decision (a big step) and reset my mac (after trying other solutions and check ups such as reset the parameter random access memory (PRAM) and nonvolatile RAM (NVRAM) and hardware check ups). Been there done that. I ve decided to install first tiger and no error was shown, then i ve upgraded to leopard and again no error was shown... At last when i ve finally installed SL and reboot the system the first thing that showed up was was that nice error...At least this time it shouws up only at start up... I must conclude that there is a kind of bug in the SL system is there anyone that has an alternative solution to this annoying problem, apart from changing mac ....=D....?

Marco,
Just to let you know you are not alone. I have a similar problem with my MacBook but the message does not seem to affect operation. It occurs when I plug in my USB speakers, but the speakers work just fine and the message does not reappear unless I unplug them and plug them in again. I chatted with a specialist at an Apple store and it was suggested that I make an appointment with a "genius". Because it does not appear to affect operation, I am inclined to wait and see if 10.6.2 changes this behavior.
bd

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