Hey Guys! I have the same issue. Funny thing is, I installed the game Yesterday at home on my desktop and everything works perfectly on it. Today, I also installed it on my laptop and now, I seem to have the problem. I used a new download off the site as well as multiple different ones (32bit & java) but still no luck. I will play around a bit to see if I can figure it out as I don't think the coding would be the issue as the product works on another device.
Plot thickens! I'm going to try and make a test app later this evening for anyone that wants to to test - something that'll just print out what buttons are being pushed on your mice/touchpads. Whatever LWJGL+ libGDX thinks is your "left" and "right" mouse buttons is clearly incorrect, but more general "is the screen being touched / clicked" is working (menus).