P223W with my laptop build in graphic card

I always got these blurry lines, especially when i play warcraft 3 when i connect my laptop to my p22w Acer 22" LCD. The LCD works perfectly on other CPU but for my laptop, it keeps showing these blurry lines, I think these is what you guys called "distorted image". Any idea how to fix this? It's very annoying.

I tried installing the p223w driver, it doesn't work.

I tried setting my resolution to the Native Resolution (1600x1050), it seems to make things worse.

I need help, Thanks.
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