I turned my computer off while I was on SAND. When I came back, I tried to access my yahoo email accounts and when I sign in and then try to click on my inbox, a thin blue column appears in the middle of the screen that won't let me go on any further. If I right click on the column about fifty times it will eventually disappear. I can't figure out what it is because it's only a few milimeters wide. It happens when I open both of my yahoo accounts. It doesn't happen when I open my yahoo account at work.
I know it sounds weird and I'm probably not explaining it well but if anyone has seen this before please let me know what it is and how to get rid of it. Thanks!