driver side power window

when i put the window down the whole way it goes off track. I found a plastic peice with what looked like a rubber stopper on it, about the size of a nickel. Dont know if its for the window or not found it on the bottom. now when i put the widow up it dont seal in the back unless i push it backwards when i put the widow up. hopefuuly someone can help me out please.

I have a 93 accord ex. that has a problem with drivers side window also. very hard to get it down, it will come down like only halfway and then gets stuck, something is binding it or else the motor is shot. I know that this is a problem on those 4 gens.

regulators are twisted they operate like a scissor action for want of a better word lifting and lowering the window,(i think this could answer both threads).i had the same prob took the window motor out straightened the arms reinstated and it was ok for awhile,then it went again so i repeated the above,byway i used a plastic mallet and laid the arms on a piece of wood to straighten.but the bad news is once buckled this becomes a weak spot and will happen again i solved this by replacing the motor which in the uk direct from honda approx £170-00,i said sod that for game of soldiers lol.i got a full door of the internet (i had some other probs on my door)same colour,excluding glass and wing mirror for £120-00 delivered.i,m not a mechanic replacing the window motor was easy.last word acquire a w/s manual it pointed me in the right direction hope this helps good luck

thanks max ill try.