Since the Fafurion update, i began to notice that everytime when i pressed "repair files" the in Launcher, it always downloaded some files (the same file size (847.2 kb)).
Recently i was finally able to find out which files are being constantly downloaded, and why... these files are sp_32b_02.bmp, sp_256_02.bmp, sp_32b_03.bmp, sp_256_03.bmp. (The loading images that you see when launching the Client)
Everytime after you press "PlayNow" to launch the Client, the NCLauncher will delete those files! (So if you wonder why you only see the Orc as the loading image, thats why)