This is a very hard question to answer. When a computer experiences a power surge it is possible that it does noticeable damage such as burning inside the computer and physically blowing parts. Sometimes, however, this isn't the case and you can't see any noticeable damage at all. Just because the mobo led is glowing green doesn't mean the board wasn't fried from the surge. As for the question about the video adapter and the glowing display: I suppose it is possible for the video adapter to be damaged and simply give a blank output to the monitor rather than no output at all. If the issue was caused by lightning then it is very odd that your power supply still works. Since you tested the processor, hard drive, RAM, and power supply then that only leaves the CPU and motherboard as possible broken components. Its a long shot but try this:Unplug the computer then remove the button battery from your motherboard. Leave the battery removed for 5 minutes or so then replace it and try turning the computer on again. I had a glowing display with now picture one time and this worked for me, as my bios setting for default VGA somehow got changed and this resets it.
