Can't change workspace
I'm in the process of learning how to use Illustrator and have run into a snag. It was working fine until I loaded it up today. My menus have dissapeared and I can't change my workspace. I click on window --> workspace --> essentials but it stays stuck on 'layout." I have tried changing it from the drop down menu pictured and same thing--it doesn't even entertain the idea of switching to anything beside layout. The reset options below it are also grayed out. I already tried deleting my saved preferences but it had no effect.

Any help would be much appreciated.
