Hydravision, on Windows 8, interacts with the open source screenshot software Greenshot. If hotkeys or the task bar icon is used to switch desktops, the Greenshot capture region function is activated. I have tried different hotkeys (ALT + number, CTR-ALT+ number, etc.) with no effect. The capture region function of Greenshot is set to be activated with the Print Screen button so it seems this command is being (inadvertently?) triggered by Hydravision. There is at least one bug report submitted to the developers of Greenshot but on which end does the bug lie?