http://members.tripod.com/windowsxp2002/system_tweaks2.htm try this, i already have nv4_disp inthe first part.....: Open up regedit and browse to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nv4\Device0 In the right window, find the key called InstalledDisplayDrvivers . Right now it says nv4 (just nv4 nothing else). Right click on it and choose "Modify" and change it to read nv4_disp. Also check at the: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nv\Device0 and do the same if necessary. Now, go into notepad and paste this: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\Software\NVIDIA Corporation\Global\NVTweak\OemConfigurations] "ControlsOverride"=dword:00000001 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management] "LargePageMinimum"=dword:ffffffff Now, save that as nvidiatweak.reg and then go to the folder you saved it in, and double click it and then it will be merged into the registry. Now reboot your machine and see the results.