Okay, I did the personalization as you suggested to my Windows Classic theme. I wanted a white background on the dropdown menus. It was successful for "older" applications that I have, such as Photoshop Elements 5 and something called "Note Tab Light", the menu background is white. See attached screen capture.
However, it was not successful, the menu background is still a light purple, for "newer" applications such as Firefox, Quicken Deluxe 2010, Lightroom, Internet Explorer, etc. See attached screen capture.
So, what is going on here? What next? How can I get all menus to have a white background?