Quote:



So---I must not have the board seated properly in my tower. Should I open my case and reseat it.




Yes, hopefully that will do it. Pull it out and put it back in, the mechanical wiping action of doing that should clean any possibly dirty contacts between the card and the motherboard.


Quote:

Do I need to take the battery out first.




No. The technician replaced the battery and that's that for a couple years at least.

Quote:

When my technician got my computer started yesterday for me--He quickly reseated all the boards--I'm surprised it didn't start with the rest of my computer.




Open it up and check it carefully, sometimes a card will "pop" back up a bit, or sometimes replacing the screw or hold down on the tab can tilt the card and you lose connection.

--Mac