71 Challenger window rolled down but will not roll back up.

2 Questions about my 71 CHallenger driver's door:
1)  How do I get the inner panel off?  It seems to be hung up on the upper left corner.  I've removed all screws, bolts at the lock and door handle, window lever and popped out the clips on the bottom.  It seems there is something I cannot see holding this upper left hand corner firmly in place.

2)  What is likely the problem when I get in there?  The window rolled down easily but will only go up a couple inches.  Nothing seemed to break and I have not tried to force it which seems like a really bad idea.

Thanks.  

I have had this issue on the quater glass on a 1970 Dodge Dart so...
1) If possible grab the glass... this is a crucial element of the process
2) After grabbing it lightly pull up on it while rolling up the window with the leaver
3) Should be able to get the window all the way up... not sure what causes this problem but thats how to get your window up

Hope this helps!