Hello i just bought the Take On Mars on 2016-01-05.I too and had an issue on start up and fixed it with Win98 mode. and now i also have the same mouse issue this has been an issue for this game for a long time and still not fixed. if there is a fix that i have not found please i would love to know about it so i can play Take on Mars! Dram you still around? Help please!

Intel i7-4710HQ CPU @ 2.50GHz
NVIDIA GeForce GTX 860M
Ram 16 GB
OS Win 10

Ps. i have tryed every fix i have found on the Steam support...