I screwed up my silver Pronto screen a little while back and though I was screwed until I found this thread. I have since ordered the new screen from Earth Computer Technologies and installed it. For those of you who have the European Model and can't seem to find the right part number feel free to visit my site at
http://www.joey6p.com and go under "DIY Projects" and then "Pronto Repair". It gives the part number I ordered from them as well as a gallery of pictures to assist people in repairing their Pronto screens. I tried to make it as indepth as possible :) Hope this helps a few of you out :)