LCD becomes fuzzy after connects with T61p through VGA port

Hello,
I have a Dell E207WFP LCD which is previously connected to a Dell desktop through VGA. Today I connect it to my T61p through VGA using the same cable. I am able to setup the resolution as native resolution which is 1680*1050 @ 60Hz. However, I found that the screen is obviously fuzzy than connect to the desktop. The font is not sharp. I tried to adjust the cleartype font in Win7 and the bright and contrast in the LCD but nothing helps. I connect it back to the desktop and it works fine... Both computers run Win7. Could you please let me know what could be the possible reason? Thank you very much!
My T61p uses FX 570m video card.

This is hard to judge without a picture. It could just be a low-quality VGA port which is not a defect but an attribute or a nature of many laptop VGA ports.
Remember that the VGA is an analog-type video connector and some sort of blurriness is to be expected, especially at higher resolutions, this is because the GPU processes the image digitally as well as the LCD, but the VGA is analog so the image has to go through 2 conversions.
In conclusion: VGA is great for use in projectors and other devices with resolution no higher than 1280x1024. Above this resolution, defects are likely to appear.
For higher resolutions I'd suggest purchasing the Advanced Mini Dock which features the digital DVI port.
ThinkPad T61p | 15,4 WSXGA+ | Intel Core2Duo T9300 2.5GHz | 4GB CL4 DDR2 RAM | nVidia Quadro FX 570M | Win7 Ultimate x64

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