I've used this board with my ubuntu machine with no problem, the board itself is in working order.
Now I'm trying to use it with windows. And now I'm trying to resist the urge to fix it with a hammer.
The Hardware:
Arduino MEGA2560r3(Purchased on 2013-3-18 from Radioshack)
Asus UX31E(They call it a zenbook. whatever, it's got an i5 and 2 USB ports)
The Software:
Windows 7(home edition I think? I'm new to windows.)
Arduino-1.0.4-windows
I plug the arduino in. As expected, windows fails at finding drivers.
I crack open the device manager and there's something under "Other Devices". That's strange because it isn't the "Ports (COM&LPT)" that I expected. No matter! I'll forge on ahead and right-click it > update driver software > browse my computer for software.
Direct the "update driver software" dialogue to the "drivers" directory in arduino-1.0.4-windows. I have "include subdirectories" checked, just in case.
So I google and google and google and find another user having similar issues. While similar, he is using Windows 8 and his device manager shows slightly different stuff. I try to take some of the same steps he did anyway.
Download and install FLIP. FLIP starts just fine. Most things are greyed out.
Select the relevant target device and the "select a communication medium" button becomes available. Click it and select "USB"(both because it's the obvious choice and because all other options are greyed out.
It is the board new? probably it is broken. Sometimes can be fixed but it is better if you can exchange it for a working one asking for support in the store.
What is the Hardware ID for the USB Controller under Other Devices?
Go to Device Manager
Right Click USB Controller Light
Select Properties
Select Details tab
Change Property to Hardware Ids
What is displayed under Value?
I suspect it has something to do with the USB 3.0 drivers on the zen book.
There have been several problems with USB 3.0 and Windows 7, since it does not support it natively.
I understand you have given up on Windows, but if you decide to try again, you might try upgrading the USB drivers from the Asus support site.