intergraded video card issues

Noviceuser said:

I have a dell Inspirion 1545 laptop. I recently tried to invert screen ctrl atl down key.. Id did nothing but mess up my sysytem the display went to a very low reolution I was able to change that but now I can not use my screen saver I get a message that says the following

cant run screen saver because video card not compatable with direct 3d

How can i fix this driver is updated device is on it worked before how can i fix

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Noviceuser said:

Moble Intel(R) 4 Series Express Chipset Family

this is what it said under device manager display adapters

Thank You for your help

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