Madden 2002 and Mech. Commander 2, not working

My Madden 2002 and a new game, Mech Commander 2, refuse to work on my system since I installed a new monitor.

Monitor is a 17" Envision LCD, Video card is a Nvidia GeForce4, MX4000, 64mb PCI.

I'm running Windows ME, on an HP 858e PIII, 1GHZ

I've got all patches, run firewall(Sygate Personal) Antivirus, (Norton 2004)
Spyware, Spybot S&D, Spysweeper, Adaware.

My other EA game, The Sims Deluxe, works fine. Madden worked on the old monitor.

Have already uninstalled and reloaded, no luck.

I have Intel Application Accelerator installed.

Any help you could throw my way would be appreciated.

Thanks, Wombat