Bigmuscle, i am now testing version 0.9. In my first post on 29 April about V0.8, i mentioned that blur effect is missing when windows are over IE10, but i realize now that this happens only when using blur in native mode (non native mode in V0.8 gived me only transparency, no blur). Now V0.9 works very fine and i have blur without using Native mode. Artifacts are still here (but very minors), but i noticed they appears only when i am in dual screen, or on first screen (laptop)! When i am only on secondary screen there is no artifacts. Hope this helped you, regards.