Screen flickers when dragging from dock lists to desktop

Hi there, I have a Mid 2010, 27 inch iMac 2.93 GHz Inter Core i7 with 8 GB ram with ATI Radeon HD 5750 1GB. Running Lion 10.7.2.
I have noticed that lately when I click and drag an item from my Downloads (the list on the Dock) to my desktop, my screen flickers for a second before I release it. Screen shot included:
What can be the cause of this? Is my graphics card dying after 1 year?

Vlad - you win the award for the most cluttered desktop on the planet. I think you get a plaque for this!
It appears you have an issue with the graphics card. You should run the Apple Hardware Test.
Here's how:
The Apple Hardware Test.
If you have Applecare, set up an appointment at the Genius bar asap (before your Applecare expires). If you do not have Applecare, I strongly suggest you get it asap (before you no longer qualify to buy it) and then set up your Genius Bar appointment.

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Screen flickers when dragging from dock lists to desktop

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