Um, you're all incredible sweethearts

Um, you’re all incredible sweethearts for emailing me, but when I was talking about the volume control, I meant that I wanted to just point at the yellow speaker icon in the taskbar system tray (well, the icon is black in Windows XP) and roll the mouse wheel up and down to change volume.

I do know that I can single-click on the volume control and get a slider which responds to the wheel, but then I have to change focus and all that other terrible stuff. I just want it to know I’m pointing at it and respond. Is that so much to ask?