I was having a problem when running games on my laptop. They run in a smaller screen than windows. I thought it was due to the installation of Mobility modder. I was wrong. Now i solve this and decide to share with others the solution! I'm using Windows 7 x64 Ultimate. The driver from AMD/ATI is Catalyst v. 10.2 Legacy vista 32-64 (ATI Catalyst? Legacy Display Driver). So if you aren't administrator of your system, you need to run Catalyst with administrator rights. No need to use compatibility mode. Then just click install as seen on picture. After installing, it should appear this window: Just click cancel. Now Let's run Mobility Modder. Choose the driver location and disable the UAC. Just hit modify and wait until it's finished. After this let's run setup from driver location, usually C:\ATI\Support\10-02_legacy_vista32-64_dd_ccc. Install Catalyst. If your having the same problem as me do this: Open Catalyst control center in basic mode Choose Notebook Panel properties\resize the desktop to fit the display panel. Click go. Choose option resize to fit the display panel. There. Your good to go. We can only resize to fit the display panel in basic mode! I've done this in Windows 7 but it also works in Windows Vista. It applies either x86/x64 versions, and also from starter version to ultimate.