How to fix front passenger window not going to the top

[morto]

Hello all just thought i wouold share a little issue on the c5 ,,, front window going to the top then comming down a little,,, put key on accessories take fuse 4 out of fuse box in glove box, try front windows they should not work,,, place New fuse in and try drivers side window it should go up in bits till it learns were the top is,, go to left window switch and do the same .. hey presto window should now go up and down and stay there,, worked on mine found the cure on the net

Andy