I don't have a touchscreen, either in my Windows device manager or physically. I went in and disabled the touchscreen/tablet service anyway.
Things are still behaving strangely, and I have no idea why or how to fix it. I can select my martian colony but can't ever seem to get Earth to re-select afterwards. It's simple enough to work around this, close the economics window, but I shouldn't have to. I've never seen this before.
The tree view is also occasionally prone to disappearing for reasons I can't begin to understand.