Bebi Bulma is right the fact that the machine has a wide screen will not allow you to make the resoluton change to 1280x1024 check what is the next higher resolution it might be something with 1280 as the initial number and a bigger second number so as to compensate for the wide. You also wouldnt want to change to 1280x1024 with your screen because the aspect ratios are different and things would get chrunched together or scretched and nothing would look right.
