Window dropping as if top is about to go up/down

[tcaruso]

I can't seem to find anyone reporting the same issue that I'm having, though I admit that I'm having trouble figuring out exactly what search terms to use. I replaced the driver's side window regulator. Everything there seemed to go fine, so I moved on to making height adjustments. I thought I had it nailed, but now when the window goes all the way up, it drops the 4-5" that it would drop if I was about to put the top up/down. The top is fully up and the latch fully engaged, and the passenger side window is not moving. Any ideas? I'm asking before making any further adjustments, because the window height looks correct, both at the front side of the window and the back side. I've held down the window button to train it on previous adjustments, but then found that it should move a little.