itsmee

If you read carefully, then you'll see that I did not mention that it is Paint.NET's 'fault'. May be after reading the sentence again you will detect that I blame neither Paint.NET nor ATI Hydravision.

Cool idea - deleting other applications to solve specific problems. I do use ATI Hydravision since some years on a 4-Monitor Desktop without any problems (except some minor issues with TortoiseSVN) and wanted to give paint.net a try. So I found this thread and others proposing the solution to delete ATI Hydravision. This is not an option for me; I would rather delete paint.net in first place. But I did not want to give up so quickly and definitely not delete Hydravision. But it was simple: Use the application setup of Hydravision (red arrow at top right of the window) to switch the application to the single monitor window. Paint.Net seems not being cabable to detect the monitors and the canvas properly, so Hydravision will help by restricting the pane to a single monitor. After start of paint.net you then can resize the window over all monitors without problems. Hope this helps someone, who also does not want to delete Hydravision.