About a month ago a single thin vertical line (violet or purple in color) appeared on my laptop monitor. The line appears on the desktop and on any program I open. So it appears to be a monitor issue, and not a software issue. When I run the monitor signal to my Television, the line does not appear. So again, the issue seems to be isolated at the monitor screen, or perhaps the monitor driver software? Anyway, any solutions that you are aware of? Or is my monitor on the way out? I post this because a second vertical line, light blue in color, has now appeared. Thanks for any advice.