This is a quickie that will interest very few people, but might save a lot of time to those who are interested. I have written a page on the Ubuntu Wiki describing the configurations required to get Ubuntu fully functional on a Sony Vaio FJ170S notebook, check it out if you have one and are struggling to get the Fn keys working. And thanks to Greg Gulik who wrote the original tutorial for Fedora, all the stuff I wrote came from his page - the credit is all his.