Finder icon mysteriously becomes semi-transparent...

Hello...
This is my very first post in Apple official community
Today when I boot up my MBP, the Finder icon on the dock changes to a very strange look. The icon becomes semi-transparent with degraded quality. Below is link to my screenshot.
http://forums.macrumors.com/attachment.php?attachmentid=268250&stc=1&d=129562169 4
I didn't do anything special last time I ran the machine. And I've tried to fix it by running all the normal disk permission repair routines and system maintenance scripts, but to no avail.
It is very clear that such icon is an indication that something has gone wrong, but unfortunately the system doesn't tell you what it is (maybe only a handful of OS X developers know what this icon means).
Does anyone have a clue?
Many thanks

I have the above problem. and Onyx clean user cache didn't work for me.
Thanks
The Onyx program worked...

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The child control will become semi-transparency as your dialog.
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[Screenshot1|http://i29.tinypic.com/j66cky.jpg]
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I think this you are looking for.. !!
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Message was edited by:
senore100

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Finder icon mysteriously becomes semi-transparent...

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