as yea'll know i got me a accord ex 5spd, and some times when im' on a light or about to go, my 1st gear dont go in u have to move it to neutral and try until it works?

and it doesn that on reverse soemtimes?
as it happend to any of you honda techs????
does that mean i need to change my tranny fluid???(
i know with HONDA MTF)