Windows 10 Wallpaper issue

[Watwann]

I have just setup Teamviewer 11 (free) on my home and laptop pc's. They are both running Win10. Now when I change the wallpaper on one machine, it changes the wallpaper on the other as well. This is particularly frustrating as the Home pc is 5760x1080 and (obviously) the laptop is not.

I have run Teamviewer for a few years (earlier versions of both TV and Win) and have never had this happen. I certainly can't think of any reason that this would be enabled as default unless it is a push to purchase issue and I haven't found the setting to disable it.

Any help would be appreciated.