When my laptop starts up, all seems fine. Background looks ok .... But when I startup any software, it appears that all the black characters e.g. in the menu bar or in this text as I type it, contain a vertical line of green dots. Result: parts of characters disappear and it is annoying to read. Does anybody have any clue what mightbe wrong? Since my background looks ok (full colour pic) I suppose it has something to do with the software rather than hardware.