I have a 94 civic ex, my windows on both driver and passenger side windows only roll down to were there is about 3" until being all the way down. and on the passanger side window it really struggles to go up or down. so I took of the panel and hooked the switch back up and tryed seeing what was going on. when trying to roll the window up I noticed that the rails that move the window are trying to twist. If anyone has ever encounterd this problem I would apreciate the help.

 

2 things off the top of my head:

the felt/rubber piece that goes in the window channel (starts inside the door, around the top and back down into the door) is what the glass actually slides on.
If this starts to deteriorate, it can make the windows go slow or get 'sticky.'

also, there are some areas of adjustment on the tracks and regulator which are bolts with oversized holes. loosen these, roll the window up and down and see if you can find a sweet spot to tighten them down that gives you smoother operation.

 

Thanks Ill check that out. really appreciate it.