I recently got a new case for my comp, and i put all the hardware in and everything. When I go to boot up though the screen is blank. I still get a post, and it starts up. I have tried 3 different video cards, all of which have worked in the past, and that has not worked. I thought maybe my agp is fried, but I dont know. The onboard does not work, but it has never worked. Its possible its just not turned on, but I dont have any video to change BIOS settings. If anyone could offer help, I would greatly appreciate it.