Hi Falcon, you will find that the whole startbutton says Micron, you would have to change the whole start button for it to say Dell............
first you need an art program to open up the file and change it... you can find the file in your window blinds skin section.... if you cant find it, the easiest way to do that, is to open up skin studio, open up the skin you want to change and click on the start button skin studio will bring up its file name and where it is in its window blinds folder. (every piece of the skin is able to be clicked on, and you can see its file name and where its located in that skin folder)
i hope this helps you....