It IS a high-end machine...
I don't know what's causing the problem.
Oh yeah I forgot one other thing, maybe you can find 'swkotor.ini' in your installation folder, and post what's in there.. but leave the [Keymapping].
By default, it's located in "C:\Program Files (x86)\LucasArts\SWKotOR".
Oooh, found something here! [click meh]
and here: [click me too]
Hope that helps..