Yeah, options to set the level opacity and blur radius (0 = disabled) will be available in the future. However, I don't see any reason why it should deny logging in, because this utility does not modify anything in your system. Unless you set to start it with the Windows. Yeah, I'm just playing with some DX10.1 vs DX11 stuff. But I don't understand why it works for DX11 but does not for DX10 in your case, it should be vice versa :-D Or, maybe OS version makes any sense? I am launching Server 2012 on my desktop.