How do you adjust the vent window frame

Everything was reinstalled and loosely tightened up. Leading front edge of window was down approx 1/2". Up stop(plastic piece)was hitting the hook on the rear guide. There is room there for adjustment but I got what I could. So I removed the plastic upstop from the glass and checked window again. No problem going up without stop lol. So I figured if "glass wont go up" , the vent frame "has to come down". So I loosened all adjustments on vent frame(4 total). And gave it a swat. Went down enough for now, just a slight gap. Fine tuning later, I want this thing mounted and outra my way lol.
There is a "up" stop and a "down" stop. The 'up" is near your tube of goo.

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