Did you install the core software from the Atik Website? It from disk, suggest you update from website as there have been recent bug fixes. But you could also try deleting this Windows local settings folder. Note that you will need to switch on 'view hidden files' via <View>.
C:// ProgramData > Atik > Infinity > Settings.
Don't worry, Infinity will restore its Integrity when you next open the software.
It appears that occasionally this folder becomes corrupted, perhaps after a computer or power crash. Windows then hangs onto weird screen artifacts, or might lock up or fails to display components. Deleting it seems to cure a host of glitches that manifest visually.
If that doesn't work, contact Atik Support as the Horizon II is so new I doubt if you will find a solution in here.