lol, de ja vu; I had mould all over my walls in my halls in first year! :-( the uni decided to move me out of the room for health reasons until it was sorted; so yeh, def get your landlord to sort it asap. I was told the mould would give off spores that could affect breathing, possibly even asthma. I would've thought it was the landlord's responsibility, but in the meantime there is stuff you can get to clean it off. I was told it was a combination of damp, and also heating (which, according to my provost, makes mould grow quicker...dunno if that's true?) There was also an incident where a group of 3rd years had a major mould problem in their house and their landlord wouldn't sort it... it was all over the local paper. So I'd say put immediate pressure on your landlord!! xxx