sorry to be a pain, im sure this is really obvious but when you move from one room to another how do you get it to clear the screen so that only the room description shows for the room you are in?

This can be done with the roomscript "After entering the room". Just add 2 commands, first "Clear the screen" and then "Call function ShowRoomDescription"

fantastic, does the trick nicely

Alex, could you add "before entering the room" to Q5? I think this will be used often.

Sure

http://quest.codeplex.com/workitem/1004

Should be a simple Core library addition.