I am replacing the motherboard on my compaq presario R4000. It took a hit by lightning and took out the charging circuit. The computer would function normally on battery power. Once the battery ran out. i was dead. I re-charged the battery with a friends laptop and it again functioned normally. I purchased a new motherboard and installed it but now i get no video or anything on the monitor at all. I can hear the drives and fans running but nothing on the monitor. I re-installed the old board and it works fine. I believe that i recieved a bad board but wanted someone to verify that. I attached a pc monitor to test and got a "no imput signal" which makes me believe that the video on the board is out. The package was opened when i picked it up so that's why i think i got a bad one. Any thoughts or am i missing something? Would the new board need to be initialized or something before the monitor will display?