Gateway GT5228 with onboard nvidia video (k2bc51 lf MOBO). Trying to install ATI Radeon X700 PCI-E video card. From device manager, I uninstalled the nvidia onboard drivers. Powered off and unplugged machine. Installed card. Powered everything back up. There is no video coming out of the card :-(. There is video coming out of the onboard card, though! There is NO bios menu on this gateway computer that will allow me to switch video cards. Windows XP MCE does not see the new card. It only sees the onboard nvidia card. How can I get this new card to work?!?! Thank you!