For some reason a wide blue bar has appeared at the bottom of my screen. Along the top of the bar I see, from left to right, the START button, then the programs that are running. Below that is a bar for My Computer, showing 3 1/2 Floppy, Local Disk, CD-RW Drive, etc. To the right I see the time and date. All of this stuff hides too much of the bottom of the screen. I'd really like to see ONLY the START button and the date and time. How can I get rid of the rest? Thank you!