I shrunk my HDD and installed Ubuntu 12.04. Everything worked great, but if I reboot and run Windows and reboot, all I get is the "ASUS" screen and a cursor int the top left corner for a few seconds before it repeats the cycle. As long as I don't ever boot Windows, I don't have this problem. Within Ubuntu I can access all of my documents, etc. But there are certain things that I have to do in Windows.
So far, what I've been doing is just reinstalling Ubuntu whenever I absolutely have to run Windows, but it's getting annoying. At least the install is fast and easy, but I'd like to be able to modify a few things and have them stick.