Problem with screen resolution on an Asus V6V with Gutsy

[GortiZ]

I've an Asus V6V and upgrading gutsy I've lost my screen resolution.
My screen is an LCD panel 1400x1050 according to the screen & graphics
applet, but the applet doesn't let me setting it at 1400x1050 the
maximum resolution that it allow is 1280x800...
Anyone know why this change happen?
Thanks
GortiZ

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