USB ports are dead.

Hi Experts,

All three USB ports are dead. System boots but I can't get any response from the keyboard or mouse. I opened it up and noted that all 4 LEDs are lit. Did a SMC reset and tried to force a PRAM reset by removing the clock battery to no effect. Disconnected the hard drive to force the system to boot from the installation DVD. System boots to the first screen asking me which language I want to use but of course I can't input an answer. A cheap optical mouse glows when I connect it to any of three ports so there is power. I conclude that part of the logic board has failed. That being true how do I get the installation DVD out?