Hey there. Did you install it to (D:\Games\Aurora) as you said or is it in the program files folder?
sounds like you're using it on another HDD anyway but just checking.
Windows 7 and vista are horribad at letting you, or programs you run modifying anything in the program files folders.
~create new folder, move stuff to it... can't edit those files once in, e.g. Really frakking annoying, but that's beside the point.
Anyway make sure the folder and files aren't set to read only via properties. Sounds like it wants to write a logfile but can't. I'm sure you've probably done this already, though.
If it comes to it, delete it and reinstall, then try working up the same way. The amount of other errors I get are pretty amazing (e.g, forget about my geosurvey vessels. they sit in space trying to scan nothing at all for years. Tankers or something with full fuel trying to refuel themselves... fills my face with errors every increment... etc.)