You can disable in Device Manager under display adapter. Dbl-click to open its properties. Fastest way to Device Manager; hold down the Windows Logo key and press Pause/Break Key, click Hardware, Device Manager. If not a Windows keyboard, click start, control panel, Performance and Maintenance, System, Hardware, Device Manager.
I will be installing a new graphics card on my Emachines T6524..2gigram/AMD 64 Athlon 3500+/200 gig HD . How do I disable the ATI Radeon xpress 200 for the new graphics card Biostar evga 7600gs 512MB PCI express.