Creative! That's your problem! I remember we had to use a mallet and drift to gently tap the frames apart when will had to fit a new frame to my brothers (defective frame). BTW how long did it take them to send the glass? When you fit them together make sure they draw together evenly each side, (same goes for taking apart) I seem to recall we used some silicon lubricant. Send a pm to OP for more details 
