Computers are not all so strong. Here follows a game I played with the program found at http://members.aol.com/shadows125/connect4.htm. Since there was no option for me to play second, I used the opening move a1, which is a proven loss for player 1.

BuilderQ vs http://members.aol.com/shadows125/connect4.htm

1) a1 - d1
2) d2 - d3
3) d4 - d5
4) f1 - d6
5) f2 - f3
6) g1 - c1
7) e1 - c2
8) e2 - c3
9) g2*

Since the program never learns from its mistakes, unlike a human player, you can go to that site and play all of my moves, and it will respond with the moves I have recorded.