shifting topography, disconcerting

I got online this morning before classes to check the weather. I have a riding lesson this afternoon, and just as I suspected: thunderstorms continuing at a 70% chance through the night. I left that weather channel window (channel, window) to open and print some reading. When I clicked the bar at the bottom where this weather channel window was saved, a new window appeared in its place. IF YOU HAVE NEVER HAD A DUI YOU ARE PAYING TOO MUCH FOR AUTO INSURANCE. The weather channel window was subsumed.