FLOATERS 飛蚊症

Hey, everyone!
I think I am finding out the problem which leads my computer to shut down!

It's Leo's video card!!!!

I have changed it to the default slot of mainboard.
The experiment works fine and no more hang problems to happen.

I can spend hours chatting on the interent with my friends;
I can spend hours downloading favorite movies and EA series;
I can now listening to music and writing blog more freely.
But....
this solution came too late :(.... comple PC to shut down have spoiled the screen....
It was inevitable that there would be something losses of my PC....
And I am afraid of my eyes will be damaged before long....

NO MORE FLOATERS PLEASE !!!! ><