Dang, you might delaminate your screen... this is bad. If, while evaporating your water, some "gel" seems left behind, your screen delaminated. This happened to my E-125, and it worked fine (until I shattered the screen later

) , but if you delaminate too much, it will lose a lot of accuracy. If you did delaminate it, your best bet is to move the gel around: that's what got my E-125 working again.
The heating causes delamination. Which is bad.