sneak in her house when she is gone out and change the monitor then pretend you dont know what the hell she is talking about!!! just convince her that it is the same one she has had for the past 10 years!!! hahahaha
i understand you on the "Owe the Mumma" thing. about 4 years ago my moms dinosaur comp was acting up, just needed another cleaning of the drive and updates ect ect...but i said to hell with it and just told her that hers was beyond fixing, she must have caught a really bad virus or something and went and bought her a new comp, monitor ect. i did it for 2 reasons, 1 she is the mumma and it made me happy to for once do for her, and 2 cause i was always having to fix her old worn out one and i was happy to watch it go the way of the T-REX!