My guess…
that strip has multiple fasteners along it that fasten to the metal tabs on the door shell…sounds like he didn't line it up and hook onto each fastener. Once fastened, that strip can't flip down.
You can pry it up starting at the door lock knob. Be very careful doing it as that has a metal rod inside and if you bend that, it will be a PITA to get it back flat.
ALSO…the slowness TOWARD THE TOP….means it NEEDS LUBRICATION!!! Review the posts that talk about lubricating the rubber channel. Very important, or you'll end up burning out your window motor. Can use 100% pure silicon spray, Teflon Silicone, Dive Silicone
http://www.vehicross.info/forums/sho...47&postcount=8
And consider the discussion earlier in this thread about whether the vertical metal channel needs to be windened and possibly moved a little forward. I, and many many others have done that, with great improvement in the slowness, as it relieves some of the pressure/friction on the front edge of glass along the rubber track. LeonR disagrees with this theory however.