i have the same problem with all distros.
Normally my resolution is 1280x800, but all distros start with 800x1280.
There is no problem with changing orientation, but there is still problem with refreshing. Linux sees 1280x800 in options, but when im clicking on it - my screen looks like it's demaged. Probably it's problem with drivers. I can't find solution on internet, and im newbie with linux too. Please help me with this.