About the glitch, if I remember correctly, I was at the dessert, then I went in my inventory, to stare at the postcard, then exited my inventory, exited the dresser and went back to the main position. After that, I couldn't click on anything else except inventory.
For the window, that makes sense, I was being inattentive, sorry. Could you put a disclaimer in the game description that sound is required for the game? Unless its there already and I missed that too.
Thanks for the reply, can't wait to see what you make next.