I have tried all the above mentioned ideas from this site. However, I have found that the plastics clips are the major problem even if you silicon the tracks or open the tracks or whatever. If the clips are broken it seems to happen no matter what you do. Sometime next week I will write a tutorial of my window fix which I fabricated new metal brackets to support the plastic one and then bonded the material togethers. It works better than it did when I bought it. The window will NEVER tilt forward again due to this fix. It's been one month since I did this and to this date have never had an issue again.