I have the same model accord 2000 SE sedan and was getting the same issue but the car only had about 37K miles on it. I took it to Honda dealer which also had issue a recall notice on this
see link below)
http://www.ahm-ownerlink.com/mainten...ns%2FL72%2Ehtm
they had to replace the entire tranny...No Charge
Please refer to this notice to Honda.