Switching From On-board GPU To NVIDIA GPU On Windows 7?

I am having trouble with my new Fujitsu laptop. I have an onboard GPU (Intel(R) HD Graphics Family) and a non-onboard NVIDIA GeForce GT 525M GPU. I have Windows 7 Home Premium and the latest drivers for my NVIDIA video card. I also obviously have DirectX 11 installed, since I have Win7.Now, the problem is that although Windows detects both GPUs, it uses the Intel one (this was true both before installing the latest NVIDIA driver and before that).I know it's using the Intel one since: 1. If I go to Control Panel->Display->Change display settings->Advanced settings, the Properties window for the Intel GPU pops up; 2. If I go to Intel(R) Graphics and Media Control Panel, under Options and Support->Information Center, it says "Processor Graphics In Use:Intel(R) HD Graphics 3000"; and 3. Graphics quality/performance is way too low for the NVIDIA GPU.I tried disabling the Intel HD thing in Device Manager, but all that happened was that the screen went blank, so I restarted my computer, booted into Safe Mode (the screen wasn't blank there), re-enabled the Intel, and then restarted Windows into normal mode (and obviously I still had the problem with Windows not using the NVIDIA GPU.Also, if I go into NVIDIA Control Panel (click the system tray icon and click "Customize which programs use the GPU"), under "Manage 3D Settings", if I add a game to the list of "programs to customize" (in the Program Settings tab) and then click Apply, the game still behaves as if it was using the Intel on-board GPU (as in, nothing changes in terms of quality and/or performance, regardless of the graphics settings). Also, in the Program Settings tab, under "2. Select the preferred graphics processor for this program", the selected setting is "Use global setting (Auto-select: NVIDIA GPU)" and it doesn't allow me to change that (the drop-down list is greyed out).