Can I replace my screen? It works partially but not where it was stepped on.

I ended up buying a screen locally and installing it. It wasn't the right one and it didn't work. I had to take it to a shop where I have had terrific support here in Houston called Computers and More. 10717 Gulf Freeway Houston Tx 77034. 713 941 5999. They changed the screen repalced the ballast for the backlight becasue it was humming and gave me back the incorrect screen. I was able to return the screen for a complete refund. Thanks for the suggestions. Bill