There's one small problem - I installed Ubuntu after Windows this time, and as a result it defaults to starting Linux if I don't use the menu in the first 15 seconds or so.
Is there any way to change this so that it defaults to booting Windows?
now sorted - there's an optional program called Startup Manager which lets you edit this without having to worry about messing things up.
later Except it turns out it messes up the ubuntu "splash" screen even if you don't deliberately change it. Not sure why, and it doesn't actually matter, but annoying.
Sorting this eventually needed me to manually edit two or three files! See
http://news.softpedia.com/news/How-to-Fix-the-Big-and-Ugly-Plymouth-Logo-in-Ubuntu-10-04-140810.shtml
for the horrific details.