I currently just started using windows 7 ultimate and ran into a problem! When I go into my display properties to change my theme, from the windows 7 theme that windows aero works with, to a custom theme (where all my photos ran in a slide-show) as soon as I restart my computer, the Aero (the transparency) goes away. so i used the windows search top try and find out how to turn it back on. It told me to go into the display properties where you would normally change the color of your task bar. Instead of bringing me to that window that it showed before it brought me Straight to the advanced appearance section where you can customize your Desktop, Icons, 3D Objects, menu, scroll bar, and window's color, font, and size. Now being tech Savy (A+,Net+) I was frustrated that i could not fix this problem.