I've been running lUbuntu 10.04 on a Gateway LT3114u Netbook, and it is awesome! There is but one sufficiently unfortunate system degrade that I thought I might help others be aware. I am not aware of the graphics rendering silicon in the machine, or the video driver controlling it in lubuntu, but I manage to be able to make it loose sync when I drag a browsers (konquerer, firefox, chrome) page view bar (RHS) down a Web page. The problem doesn't exhibit itself immediately. It takes a while of dragging before the display goes to pieces, but it is consistent. On occasion, I am successful in getting the display to be properly rendered again, by moving the mouse down to the desktop panel (LXPanel), and making it pop-up, or selecting a window that is occupying a large amount of area, and moving it around (that was the preferred method when this problem exhibited itself when I was an engineer at DEC). In the event that I can't arrange, proper resync, I might be able to work in one of the applications that I'm fielding, but video quality degrades from there (especially the alphabetic characters in text apps, and window labels, and the like), to the point of a mandated reboot to get a working enviromnent back.
Also, this problem does not seem to exhibit itself, or it takes alot longer, when using a 'mouse click, page progression' method, instead of dragging.
Cheers,