Cold drink compartment

Has anyone had a problem with the cooling flap or small sort of hinged drop down flap just to the right of the steering wheel, Its part of the Air con for cooling a can of coke or similar drink, Mine was opened earlier and wont close properly it is too dark to see what is causing the problem, It is sort of lined with a rubber insert, Just wondered if anyone else had any problems with it, I dont want to force it closed in case it breaks something, Problem is it interferes with your knee when driving so I have taped it sort of half closed fo the time being, Any help anyone,