"Grumps" wrote in message
...
I've always been told that you shouldn't use water as it could crack the
glass. Is this true or one of those old wives' tales?


Yep jug of cold water, add a little hot till you can feel a change in the
temp of the water (i.e. warm not hot)
poor this over the screen - no probs in 20 years !!!
--
Vass