I don't use my dual boot Ubuntu that often except that it's wireless network seems far more performant and reliable than that on XP running on the same machine using the same USB wireless adaptor. Irony follows....
I boot into Ubuntu, and like nearly always, it prompts me to do some software upgrades, this time asking me to upgrade the whole OS. Like a fool I accept. About an hour later, it's all done, but no network! Woe is me.
Resort to trusty google, and this pops up! Lug the desktop down to the router to get a network connection, and it all worked fine.
Not good marks for Ubuntu though.