The switch on the front is held on a plastic web which flexes when the switch is pushed in, this usually breaks within a short time and either needs a complete replacement which will mean the removal of the front panel. This is actually quite difficult so here is a quick fix.
The switch usually triangular is held in place by a plastic web which is quite brittle on each side, take some gaffer tape - the silver kind used for all sorts of houshould used and using the gap underneath the front cover to get you hand in put a square of gaffer tape on eother side of the button so it holds together the plastic web, if poss try and get this to stick to the front cover as well, do this on both sides and you should find that the button is held fairly firmly in place, just remember not to use too much force when switching it on.
warris, August 2012