Dell Inspiron 1420 Laptop "screen fuzzy gray" Questions

...fuzzy/grayed-out, and you could see a kind of faint grid pattern across the screen. This problem remained the next time I powered up. Then today, I powered up and the screen looks fine, no problems. ...

screen becomes multi-colored in a streaky fashion wherer gray color becomes pink and orange becomes pale red and all images are fuzzy. Very difficult to reaad. This happened during warranty and I sent

...fuzzy and turning redish and would fail to display anything after a few minutes. I plugged in an external monitor and it works fine. I disassembled the display and checked connections and reseated ...