Bonded windscreen removal

[itsallyellow]

Sorry for the boring post!!

I need to remove my cerbera's rear window. Its bonded on. What is the best way to remove it?? ive heard that you can cut around the bond with a very sharp knife but this sounds very time consuming!!

thanks
mike

[itsallyellow]

The new screen will be bolted on. Just need to get this one out! has to be in one piece though!