Just a quick note/self-reminder.
So I don’t use Evolution. Webmail is more my thing. After installing the 10.4 release of Ubuntu Netbook Edition on the Mini 9, I remove Evolution to save a bit of space on the SSD.
However, this removed the volume Control icon on the top panel. I also discovered that in 10.4 UNE, the panel is locked, and you cannot add new icons easily.
Never fear. After 2 days of looking, I have the answer: Open your terminal & do as follows:
sudo apt-get install indicator-sound
Log out & back in. Done. Thank me later.