[defiantforce]

No, I agree I like Vista. It's a good OS just way too long in the making but that's offtopic.

On the older nVidia cards (7600 and older) it seems to have a cursor offset as mentioned above, but only in windowed mode from my experience. The 78xx and above don't seem to be affected by this. Some cards seem to function better in windowed, some in fullscreen, you should play around with the setting and see which gives the most reliable performance for you.

Service pack 1 made a fair amount of difference as to the speed of Flyff on my Vista laptop but none whatsoever on my desktop so it'd be worth making sure all your updates are installed. As usual make sure you have the latest drivers for your video hardware, and mainboard too.

As jonno said it's worth getting everything you want to have running set up before you start up Flyff, as loading up other apps when Flyff is running can cause issues. If you're running in fullscreen and you have things going on in the background, they can be degrading on your performance, and some machines seem to have major issues with alt-tabbing in fullscreen, bringing it back up can be incredibly slow or not load at all.

Any system info your friend could give would be useful