Read this thread about pixel perfection:
http://www.wowinterface.com/forums/s...ad.php?t=31813
Read all of it, Blizzard changed some functionality in the process.
You will get unsharp pixels if either the with or the point of your frame is using unfloored pixel values.
To make it work make sure you floor() all the pixel values you are using for width/height/setpoint.
100.022323333 != 100
Since you are using kgpanels and you are moving/sizing stuff ingame you will get tons on unfloored pixel values.