Help! I click on full screen and the menu bar totally disappears (until I am out of full screen) but the toolbar is still there! It would previously disappear until I put my mouse on the top part of the screen. It simply stopped working just now all of a sudden while watching youtube. So, I deleted my temporary files, cookies, etc. and rebooted my computer. It did not solve problem. I am using Windows XP. That top toolbar is going to burn into my computer screen!!! Help!