It's been many years since I asked a question of you all. I have a 1995 Ez Trak DX. I've changed out the old CRT with a snappy LCD. I love this machine. Now the battery went dead and have to replace it. Since I have to take out the board to do it,any recommendations? Can I upgrade the mother board or processor (intel 486 SX) upgrade the Hard drive, etc. Any help will be appreciated Rick