You're welcome, I have the habit to search a fly in the ointment (is it the correct expression?) but it's never to overwhelm, it's just because i'm interested in your game :)
I found the hint, but it wasn't helpful for me ^^" (maybe I'm bad at logical thinking, either the keytouch being refered doesn't do anything, either it's the roman number in which case I already had this informations, either there is another hint and I didn't found it). And I don't know why I can't rotate the room to help me solve this riddle, it was the part I prefered ^^"