How to get past the door

[tonks_op]

I am new to the group. I have tried to see something once the door 
is open and there is nothing there. Of course today there was a Do 
not Disturb sign on it, so I guess there is no getting past it now. 
But when it opens again.. what do I do? It is something that I need 
on my computer that I don't have .. or the speed.. or what? I have 
tried grabing the fly, turning the light off and on.. moving the 
curser everywhere on the page.. and nothing.. how did everyone else 
get to a dart board and a safe and then a note???  And all the clues 
about number and stuff.. how did you know to look?  It is very 
confusing.. more that the books!!

Thanks.
Tonks_op