My display will not rotate after installing Windows xp SP3. Any solutions apart from installing SP2?

What brand/model of video card do you have?You may want to consider reinstalling the latest drivers/utilities for your video card to see if that helps.

Thanks for that. I have a ATI Display Driver Version 8.091-040921a-018488C-Asus. Do you know how I can get an upgrade if one is available? Thanks.

You would probably want to go here:http://support.amd.com/us/gpudownload/Pages/index.aspxbut you will probably need more info than just the fact that your brand is ATI. You will probably also need the model of your ATI Video Card:Start->Control Panel->System->Hardware->Device Manager Look under Display Adapter and see what is there. If you have trouble finding device manager you can review with Wikipedia Article since there are many ways to open Device Manager:http://en.wikipedia.org/wiki/Device_ManagerAlso, you might see if the documentation that come with your computer will tell you the model of your video chipset.