Thank you for replying to my query. I do not have the said icon top left on my screen. It appears the install disk defaults to kubnuntu and I have 8 icons top left on the opening screen. L to R they are, language, Network etc/, bluetooth, avail.-away etc., mouse, volume, time/cal., about, logout etc. Hence me trying to set another user, What flavour of ubuntu should be the default? and how do I access the options to select other desktops? Sorry to be a pain but I am anxious to check them out without having to do multiple downloads.