Hi there and welcome to the forums!
As Santus said its a good idea to make sure all your Xinput drivers are up to date.
Also, if you hover your mouse over the top right of the Trackmania starting screen it should reveal a hidden menu, if you click on the cog and go into settings you should be able to make sure you switch the input from keyboard and mouse to game pad.
As Santus said its a good idea to make sure all your Xinput drivers are up to date.
Also, if you hover your mouse over the top right of the Trackmania starting screen it should reveal a hidden menu, if you click on the cog and go into settings you should be able to make sure you switch the input from keyboard and mouse to game pad.