For anyone who’s been using neko x64 on Windows Vista or Windows 7 and seeing something like the above, it turns out the fix was really easy and really simple. As mentioned by mikesword221, all you have to do is make it ‘always on top’.
Just right click on the cat in the task bar (he may be hiding, check under the up arrow…)
And make your settings something like this:
Then hit ok and Neko will now look normal, with no more ghosting.
Later on I’ll have to make an installer, and fix it so that neko is always on top.